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").

[EX Q]: When the old man was much younger, he still had (A) brown eyes (B) baldness (C) gray hair (D) wrinkled skin
[EX A]: A

[EX Q]: Where might you see light reflect? (A) rocks (B) bottled liquid (C) sand (D) wood
[EX A]: B

[EX Q]: What requires energy for growth? (A) wood (B) paper (C) rubber (D) anteater
[EX A]:
D