Read the following early draft of an essay and then choose the best answer to the question or the best completion of the statement.
Passage
(1) Calling someone a rat may be complimentary. (2) In one experiment, University of Chicago neuroscientist Peggy Mason placed 30 pairs of rats in pens. (3) One rat was caged in the middle of the pen, while the other was free to run around. (4) Eventually, 23 of 30 ratis liberated their peers by pushing the cage door open with their heads or leaning against the door until it tipped over
(5) In another experiment, Mason gave rats access to two cages: in one cage was another rat, in the other was a pile of chocolate chips. (6) The rats eating the chocolate themselves. (7) Instead, most of the rodents opened both cages and shared the sweets (8) "In rat land, that is big." Mason says, claiming that this study is the first to show altruistic behavior in rodents.
(9) Not all scientists agree with the conclusion Mason drew from the experiment, however. (10) The jailbreaking rats might have only been trying to silence their cohorts' distressing alarm calls. (11) Mason counters that the alarm calls from the caged rats were not frequent enough to motivate their peers, but both parties are speculating at this point.
(12) Mason's new study is one of many that are changing how scientists think about empathy and altruism, namely: that such characteristics are not limited to people, as they once thought. (13) It now seems that many animals have evolved instincts to help others.
In the context of the passage, what sentence should be inserted immediately after sentence 11 (reproduced below)? Mason counters that the alarm calls from the caged rats were not frequent enough to motivate their peers, but both parties are speculating at this point.
- A. No one will ever really know why rats do what they do
- B. Mason is probably biased anyway because it was her experiment.
- C. More research must be done to arrive at an answer.
- D. Some scientists will complain no matter what
Correct Answer & Rationale
Correct Answer: C
Inserting "More research must be done to arrive at an answer" after sentence 11 effectively emphasizes the ongoing debate and the need for further investigation into the behaviors of rats. This aligns with the speculative tone of the discussion. Option A, while true, does not contribute to the dialogue about the necessity of additional research. Option B introduces bias but distracts from the main focus on research requirements. Option D generalizes scientists' behavior without addressing the specific context of Mason's argument, making it less relevant to the passage's intent.
Inserting "More research must be done to arrive at an answer" after sentence 11 effectively emphasizes the ongoing debate and the need for further investigation into the behaviors of rats. This aligns with the speculative tone of the discussion. Option A, while true, does not contribute to the dialogue about the necessity of additional research. Option B introduces bias but distracts from the main focus on research requirements. Option D generalizes scientists' behavior without addressing the specific context of Mason's argument, making it less relevant to the passage's intent.
Other Related Questions
Which sentence should be deleted because it contains irrelevant information?
- A. Sentence 1
- B. Sentence 6
- C. Sentence 9
- D. Sentence 11
Correct Answer & Rationale
Correct Answer: D
Sentence 11 should be deleted as it introduces information that does not directly support the main topic of the paragraph. It diverges from the core argument, making it less relevant to the overall message. Sentence 1, 6, and 9, on the other hand, provide context or examples that enhance understanding of the main idea. Sentence 1 sets the stage, while sentences 6 and 9 contribute important details that are closely tied to the central theme. Removing sentence 11 helps maintain focus and clarity in the writing, ensuring that all remaining content is pertinent to the discussion.
Sentence 11 should be deleted as it introduces information that does not directly support the main topic of the paragraph. It diverges from the core argument, making it less relevant to the overall message. Sentence 1, 6, and 9, on the other hand, provide context or examples that enhance understanding of the main idea. Sentence 1 sets the stage, while sentences 6 and 9 contribute important details that are closely tied to the central theme. Removing sentence 11 helps maintain focus and clarity in the writing, ensuring that all remaining content is pertinent to the discussion.
In context, which of the following is the best version of the underlined portion of sentence 3 (reproduced below)? Dark shadows: streaks of bright light, and, off-balance compositions were all typical of the visual style.
- A. (as it is now)
- B. shadows, streaks of bright light and
- C. shadows, streaks of bright light, and
- D. shadows, streaks of bright light, and,
Correct Answer & Rationale
Correct Answer: C
Option C effectively maintains the parallel structure of the list, ensuring clarity and flow. The use of commas before "and" is appropriate in a series with three or more items, adhering to standard punctuation rules. Option A retains the original structure but lacks clarity due to the unnecessary comma after "light." Option B omits the comma before "and," which can lead to confusion in longer lists, making it less clear. Option D incorrectly adds a comma after "and," which is grammatically incorrect and disrupts the flow of the sentence. Thus, C is the most effective choice for clarity and correctness.
Option C effectively maintains the parallel structure of the list, ensuring clarity and flow. The use of commas before "and" is appropriate in a series with three or more items, adhering to standard punctuation rules. Option A retains the original structure but lacks clarity due to the unnecessary comma after "light." Option B omits the comma before "and," which can lead to confusion in longer lists, making it less clear. Option D incorrectly adds a comma after "and," which is grammatically incorrect and disrupts the flow of the sentence. Thus, C is the most effective choice for clarity and correctness.
Which is the best way to revise and combine sentences 2 and 3 (reproduced below)?
I'm a country kid from rural Texas. I grew up on a ranch on the prairie.
- A. I'm a country kid from rural Texas and that's where I grew up on a ranch on the prairie.
- B. I'm a country kid from rural Texas who grew up on a ranch on the prairie
- C. I'm a country kid from rural Texas, where I lived and grew up on a ranah on the praine
- D. I'm a country kid from rural Texas, and I used to live on a ranch on the prairie where I grew up.
Correct Answer & Rationale
Correct Answer: C
Option B effectively combines the sentences by using a relative clause, making it concise and clear. It maintains the original meaning while improving flow. Option A is less effective due to the awkward phrasing "and that’s where," which disrupts the sentence's rhythm and clarity. Option C introduces unnecessary complexity with "where I lived and grew up," making it wordy and repetitive. Option D, while grammatically correct, adds unnecessary phrases like "used to live," which complicate the sentence without enhancing its clarity or brevity. Overall, option B provides the best revision by succinctly merging the ideas.
Option B effectively combines the sentences by using a relative clause, making it concise and clear. It maintains the original meaning while improving flow. Option A is less effective due to the awkward phrasing "and that’s where," which disrupts the sentence's rhythm and clarity. Option C introduces unnecessary complexity with "where I lived and grew up," making it wordy and repetitive. Option D, while grammatically correct, adds unnecessary phrases like "used to live," which complicate the sentence without enhancing its clarity or brevity. Overall, option B provides the best revision by succinctly merging the ideas.
Which is the best way to revise and combine sentences 4 and 5 (reproduced below)? These elements created an effect of disillusionment and bitter realism. Many of these elements were brought to Hollywood by German directors fleeing their war-torn land.
- A. Many of these elements created an effect of disillusionment and bitter realism they were brought to Hollywood by German directors fleeing their war-torn land.
- B. These elements, many of which were brought to Hollywood by German directors fleeing their war-torn land, created an effect of disillusionment and bitter realism.
- C. These elements created an effect of disillusionment and bitter realism, many were brought to Hollywood by German directors fleeing their war-torn land.
- D. man directors fleeing their war-torn land, which created
Correct Answer & Rationale
Correct Answer: C
Option B effectively combines the sentences by using a relative clause, clearly indicating that the elements created disillusionment and were brought to Hollywood by German directors. This maintains clarity and coherence. Option A incorrectly connects two independent clauses without proper punctuation, leading to a run-on sentence. Option C misuses a comma, creating a comma splice by linking two independent clauses improperly. Option D is incomplete and lacks context, failing to convey the intended meaning about the elements and their effects. Thus, B is the most effective choice for combining the ideas cohesively.
Option B effectively combines the sentences by using a relative clause, clearly indicating that the elements created disillusionment and were brought to Hollywood by German directors. This maintains clarity and coherence. Option A incorrectly connects two independent clauses without proper punctuation, leading to a run-on sentence. Option C misuses a comma, creating a comma splice by linking two independent clauses improperly. Option D is incomplete and lacks context, failing to convey the intended meaning about the elements and their effects. Thus, B is the most effective choice for combining the ideas cohesively.