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").

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

Output: A


Input: Consider Input: What requires energy for growth? (A) a car (B) a hippopotamus (C) a house (D) a desk

Output: B


Input: Consider Input: Tom and Bill were both pushing on a large plastic ball but it stayed in one place. Why? (A) the ball was being stubborn (B) the ball was large and made of iron (C) they were pushing from opposite sides using the same muscle power (D) the ball was 2 miles across


Output: C