In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").

Q: An echo is produced by what type of reflection of sound source? (A) Direct (B) Distant (C) Varied (D) Single

A: D
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Q: Chlorophyll is good for allowing plants to absorb energy and (A) is dry (B) is dead (C) is clear (D) is healthy

A: D
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Q: Which item can be used more than once? (A) toilet paper (B) cloth pad (C) tampon (D) drugstore pad

A:
B
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