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: speed is a measure of how fast all these move but (A) a person waiting (B) a fish swimming (C) a dog running (D) a bird flying
Example Output: A

Example Input: A mountain top heats and lava flows, resulting in (A) a hot golden leaf (B) a cold deep sea (C) a raised portion of land (D) a sunken valley of ice
Example Output: C

Example Input: Nighttime in the desert may cause animals to (A) run (B) jump (C) get thirsty (D) shiver
Example Output:
D