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: Dead organisms are the source of what for decomposers? (A) nutriment (B) pride (C) oceans (D) people
Example Output: A

Example Input: What is one thing cloud precipitation can be? (A) a thunder boom (B) a liquid fire (C) unfavorable weather outlook (D) none of these
Example Output: C

Example Input: The usual kind of weather in a location is called what? (A) warmth (B) fog (C) zone conditions (D) visibility
Example Output:
C