PSAT Reading Question 10: Answer and Explanation

Question: 10

What is the primary difference in the tones of Passages 1 and 2 with respect to their arguments regarding natural versus synthetic polymer bases?

• A. Passage 1 is belligerent, while Passage 2 is enthusiastic.
• B. Passage 1 biased, while Passage 2 is subjective.
• C. Passage 1 is unequivocal, while Passage 2 is conciliatory.
• D. Passage 1 is pessimistic, while Passage 2 is optimistic.

Correct Answer: C

Explanation:

The question asks for a primary difference between the tones of the passages with respect to their arguments regarding natural versus synthetic polymer bases. Consider one passage at a time. Eliminate (A) because the tone of Passage 1 is not belligerent, which means "combative." Eliminate (B) because biased and subjective do not convey a difference. Lines 44–47 state that natural polymers have a greater ability to perform more effectively than synthetic polymers do in the treatment of human disease. This statement is unequivocal, which means "leaving no doubt," so keep (C). Eliminate (D) because Passage 1 is not pessimistic; lines 63–66 express hope about the potential…to engineer a drug delivery vehicle with optimal biodegradable properties. Choice (C) is supported by Passage 2: in lines 88–92, the author strikes a conciliatory tone (meaning "intended to reconcile"). Although the author argues for the clear benefits of synthetic polymers over natural ones, the author also urges against limiting scientific or medical pursuit by abandoning natural polymers completely. The correct answer is (C).