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: 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
Example Output: C

Example Input: Organisms with only one cell (A) are prohibited from specializing (B) can freely specialize openly (C) are unsure what specializing is (D) learn how to specialize
Example Output: A

Example Input: which of these has the most similar component as the earth itself? (A) the stone in the yard (B) a loaf of bread (C) a can of soup (D) a glass of water
Example Output:
A