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]: A dog's ears may be as thin as its (A) friend's (B) neighbor's (C) father's (D) owner's
[EX A]: C

[EX Q]: What would you use in an apartment to keep your neighbor below from hearing you shuffle around a room? (A) yarn (B) wood (C) carpet (D) tile
[EX A]:
C