Detailed Instructions: 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").
See one example below:
Problem: Deserts are in extremely dry environments, so liquids will naturally be (A) rainbow (B) plentiful (C) meager (D) talented
Solution: C
Explanation: This is a good example and the output correctly answers the question.

Problem: Pushing an object requires what? (A) wind (B) water (C) heavy exertion (D) flowers
Solution:
C