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 rats 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.
Where would the following sentence best fit in the passage? The results of two new experiments suggest that rats are surprisingly selfless.
- A. After sentence 1
- B. After sentence 3
- C. After sentence 8
- D. After sentence 11
Correct Answer & Rationale
Correct Answer: C
Placing the sentence after sentence 8 effectively introduces the new findings about rats, enhancing the flow of information regarding their behavior. This position allows for a natural transition into discussing the implications of these experiments. Option A is too early in the passage, as it lacks context for the experiments. Option B, following sentence 3, interrupts the narrative progression and does not align with the preceding content. Option D, after sentence 11, is too late, as it would disrupt the conclusion by introducing new information that should precede it. Thus, option C is the most logical placement.
Placing the sentence after sentence 8 effectively introduces the new findings about rats, enhancing the flow of information regarding their behavior. This position allows for a natural transition into discussing the implications of these experiments. Option A is too early in the passage, as it lacks context for the experiments. Option B, following sentence 3, interrupts the narrative progression and does not align with the preceding content. Option D, after sentence 11, is too late, as it would disrupt the conclusion by introducing new information that should precede it. Thus, option C is the most logical placement.
Other Related Questions
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 version of the underlined portion of sentence 5 (reproduced below)?
Compounding the problem is that food distribution system's currently require a lot of energy.
- A. (as it is now)
- B. systems
- C. systems's
- D. systems
Correct Answer & Rationale
Correct Answer: C
The best version clarifies the possessive form needed in the sentence. "Systems" (option D) is incorrect because it lacks the possessive, which is essential to indicate ownership of the energy requirement. Option B, "systems," does not convey possession either. Option A, "as it is now," does not address the grammatical structure needed in this context. The correct choice, "systems's," correctly indicates that the energy requirement belongs to the food distribution system, ensuring clarity and grammatical accuracy in the sentence.
The best version clarifies the possessive form needed in the sentence. "Systems" (option D) is incorrect because it lacks the possessive, which is essential to indicate ownership of the energy requirement. Option B, "systems," does not convey possession either. Option A, "as it is now," does not address the grammatical structure needed in this context. The correct choice, "systems's," correctly indicates that the energy requirement belongs to the food distribution system, ensuring clarity and grammatical accuracy in the sentence.
Which version of the underlined portion in sentence 14 (reproduced below) most effectively elaborates on the idea presented at the beginning of the sentence?
In spite of his concern over time constraints the occasion was an important one!- he resolved to compose a relevant tribute.
- A. (as it is now)
- B. the event would be held in the nation's capital!-
- C. only two days until the ceremony!-
- D. the president would hear him recite!-
Correct Answer & Rationale
Correct Answer: A
Option A maintains the original structure and intent of the sentence, emphasizing the importance of the occasion while acknowledging the speaker's time concerns. This balance effectively elaborates on the initial idea. Option B introduces a geographical detail that, while relevant, does not directly enhance the emotional weight of the tribute. Option C focuses on the urgency of time but lacks the broader context of the occasion's significance. Option D, while adding a dramatic element, shifts the focus to the audience rather than the tribute itself, detracting from the main idea presented at the beginning.
Option A maintains the original structure and intent of the sentence, emphasizing the importance of the occasion while acknowledging the speaker's time concerns. This balance effectively elaborates on the initial idea. Option B introduces a geographical detail that, while relevant, does not directly enhance the emotional weight of the tribute. Option C focuses on the urgency of time but lacks the broader context of the occasion's significance. Option D, while adding a dramatic element, shifts the focus to the audience rather than the tribute itself, detracting from the main idea presented at the beginning.
Which is the best version of the underlined portion of sentence 6 (reproduced below)?
Early on for example my anxiety about getting lost was so bad that I was even scared to go for a walk or to take a bus or the subway.
- A. (as it is now)
- B. on for example,
- C. on, for example,
- D. on, for example
Correct Answer & Rationale
Correct Answer: C
Option C, "on, for example," is the best choice because it correctly uses a comma to set off the phrase "for example," which introduces an illustrative clarification of the preceding idea. This punctuation enhances clarity and improves the flow of the sentence. Option A, "as it is now," lacks necessary punctuation and fails to clarify the relationship between ideas, making the sentence awkward and confusing. Option B, "on for example," omits the comma, which disrupts the sentence's readability and does not properly highlight the example being introduced. Option D, while similar to C, incorrectly uses "on," which is unnecessary in this context and can lead to confusion.
Option C, "on, for example," is the best choice because it correctly uses a comma to set off the phrase "for example," which introduces an illustrative clarification of the preceding idea. This punctuation enhances clarity and improves the flow of the sentence. Option A, "as it is now," lacks necessary punctuation and fails to clarify the relationship between ideas, making the sentence awkward and confusing. Option B, "on for example," omits the comma, which disrupts the sentence's readability and does not properly highlight the example being introduced. Option D, while similar to C, incorrectly uses "on," which is unnecessary in this context and can lead to confusion.