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.
In context, how should the underlined part of sentence 6 (reproduced below) be revised? The rats eating the chocolate themselves.
- A. would have eaten
- B. could have eaten
- C. had eaten
- D. have eaten
Correct Answer & Rationale
Correct Answer: D
The phrase "the rats eating the chocolate themselves" requires a revision to align with the present tense context of the sentence. Option D, "have eaten," effectively conveys a completed action relevant to the present, indicating that the rats have consumed the chocolate. Option A, "would have eaten," suggests a conditional scenario that does not fit the context. Option B, "could have eaten," implies potentiality rather than a completed action. Option C, "had eaten," indicates a past action that is no longer relevant to the present context. Thus, only option D maintains the intended meaning and tense consistency.
The phrase "the rats eating the chocolate themselves" requires a revision to align with the present tense context of the sentence. Option D, "have eaten," effectively conveys a completed action relevant to the present, indicating that the rats have consumed the chocolate. Option A, "would have eaten," suggests a conditional scenario that does not fit the context. Option B, "could have eaten," implies potentiality rather than a completed action. Option C, "had eaten," indicates a past action that is no longer relevant to the present context. Thus, only option D maintains the intended meaning and tense consistency.
Other Related Questions
In context, which of the following sentences would best be inserted between sentences 9 and 10 (reproduced below)?
They say we could save a great deal of energy by addressing the problem of food waste. The "sell by" dates on foods are typically very conservative and result in people throwing away perfectly edible items.
- A. Better labeling might help
- B. Many people regularly buy more food than they need.
- C. Certain types of produce spoil more quickly than others.
- D. Canned foods last much longer than fresh items
Correct Answer & Rationale
Correct Answer: A
Option A effectively connects the idea of food waste with the potential solution of better labeling. Improved labeling can help consumers understand the actual freshness of products, reducing unnecessary waste. Option B, while relevant to food consumption, does not directly address the issue of food waste or how to mitigate it. Option C focuses on spoilage rates of produce, which, although informative, does not provide a solution to the waste problem. Option D compares canned and fresh foods but fails to connect to the overarching theme of improving food labeling to reduce waste.
Option A effectively connects the idea of food waste with the potential solution of better labeling. Improved labeling can help consumers understand the actual freshness of products, reducing unnecessary waste. Option B, while relevant to food consumption, does not directly address the issue of food waste or how to mitigate it. Option C focuses on spoilage rates of produce, which, although informative, does not provide a solution to the waste problem. Option D compares canned and fresh foods but fails to connect to the overarching theme of improving food labeling to reduce waste.
In context, which choice best replaces the underlined portion in sentence 14 (reproduced below)? Being able to meet others who speak Spanish has definitely helped me
- A. made the city feel more like home
- B. given me the chance to practice.
- C. made the city sort of tolerable.
- D. been a nice surprise.
Correct Answer & Rationale
Correct Answer: A
Option A effectively conveys that meeting Spanish speakers contributes positively to the speaker's sense of belonging in the city, enhancing their overall experience. This aligns with the context of feeling at home. Option B, while relevant, shifts focus to practicing the language rather than the emotional impact of community. Option C undermines the positive sentiment by suggesting the city is merely "tolerable," which diminishes the overall message. Option D, although it introduces a positive element, lacks the depth of connection implied by feeling at home, making it less suitable in this context.
Option A effectively conveys that meeting Spanish speakers contributes positively to the speaker's sense of belonging in the city, enhancing their overall experience. This aligns with the context of feeling at home. Option B, while relevant, shifts focus to practicing the language rather than the emotional impact of community. Option C undermines the positive sentiment by suggesting the city is merely "tolerable," which diminishes the overall message. Option D, although it introduces a positive element, lacks the depth of connection implied by feeling at home, making it less suitable in this context.
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.
The best placement for sentence 12 within the third paragraph would be
- A. where it is now
- B. before sentence 11
- C. after sentence 13
- D. after sentence 14
Correct Answer & Rationale
Correct Answer: C
Placing sentence 12 after sentence 13 allows for a logical flow of ideas, as it builds on the information presented in the preceding sentences, enhancing coherence. This positioning ensures that the reader receives a complete thought before transitioning to the next point. Option A retains the sentence in its current position, which disrupts the paragraph's flow. Option B places it too early, causing a disconnect with the context of sentence 11. Option D positions it too late, potentially losing the reader's engagement with the preceding content. Thus, option C optimally maintains the paragraph's structure and clarity.
Placing sentence 12 after sentence 13 allows for a logical flow of ideas, as it builds on the information presented in the preceding sentences, enhancing coherence. This positioning ensures that the reader receives a complete thought before transitioning to the next point. Option A retains the sentence in its current position, which disrupts the paragraph's flow. Option B places it too early, causing a disconnect with the context of sentence 11. Option D positions it too late, potentially losing the reader's engagement with the preceding content. Thus, option C optimally maintains the paragraph's structure and clarity.