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: Animals adapt to their what? (A) appearance (B) feet (C) skin (D) nature places
Example Output: D

Example Input: Sound pulses helps dolphins (A) satisfy women (B) find God (C) find nourishment (D) find ibexes
Example Output: C

Example Input: In a decade spring occurs (A) three times (B) twelve times (C) ten times (D) twice
Example Output:
C