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").

Ex Input:
migration is when animals travel from the northern most state to Texas during what segment of time? (A) lake fronts (B) birds (C) winter (D) spring

Ex Output:
C


Ex Input:
The strength of a hurricane increases as moisture and what increase? (A) hotness (B) animals (C) water (D) anger

Ex Output:
A


Ex Input:
the number of rings in a tree trunk can be used to estimate what? (A) oldness (B) starvation (C) hydration (D) location

Ex Output:

A