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: Every 1440 minutes (A) the moon is full (B) there's a lunar eclipse (C) a new year starts (D) the sun sets in the west
Example Output: D

Example Input: This animal evolved to reproduce using protective containers instead of live little entities: (A) rhino (B) hamster (C) platypus (D) mongoose
Example Output: C

Example Input: Wax is on some plant leaves for what purpose? (A) stay moist for warm weather (B) keep water available for predators (C) creation of toxins in the cells (D) keep the ongoing hydration
Example Output:
D