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").

Example Input: You can use what to fake sunlight for plants? (A) love (B) a flash light (C) breathing (D) water
Example Output: B

Example Input: Grooves in the ground are a sign of (A) sink holes (B) erosion (C) water accumulation (D) high traffic
Example Output: B

Example Input: Where is a mama bear likely to find food? (A) on top of the highest trees (B) in the deepest mines (C) in the inside of a felled oak (D) at the bottom of the lake
Example Output:
C