PSAT Reading Question 551: Answer and Explanation

Question: 551

Which choice provides the best evidence for the answer to the previous question?

• A. Lines 6–8 ("the . . . element")
• B. Lines 13–17 ("Polar . . . appropriately")
• C. Lines 24–28 ("This . . . field")
• D. Lines 31–36 ("In . . . it")

Correct Answer: A

Explanation:

(A) Lines 6–8 give the most direct support to the fact that microwaves lack an internal heating element. Choices (B), (C), and (D) give technical explanations of dipole rotation but do not clarify how the microwave is distinct from other forms of cooking.