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: Pulse accelerates (A) when cooling down after a work out (B) when running pace increases (C) when running pace slows (D) when entering into a sleep state
Example Output: B

Example Input: Which is likely born via hatching? (A) a raven (B) a goat (C) a horse (D) a cat
Example Output: A

Example Input: A man wants to use a material in a project that will be nonrenewable. The man decides to use (A) grass (B) solo cups (C) raindrops (D) muddy water
Example Output:
B