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: A person can get sick when eating a vegetable if it was farmed using (A) water (B) dirt (C) insect destroyers (D) tools
Example Output: C

Example Input: heat and pressure change the remains of what into natural gas? (A) leaves (B) cans (C) books (D) cars
Example Output: A

Example Input: Which area would be brightest, if you woke up there? (A) rainy environments (B) underwater environments (C) forest areas (D) frozen areas
Example Output:
D

