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

Example Input: Flowers with more pollinators (A) escalate reproduction (B) increase water usage (C) increase visual appeal (D) decrease reproduction
Example Output: A

Example Input: Jim was looking straight at his neighbor's bright Christmas display but it looked very dim to him. That's because (A) Jim was wide awake (B) Jim was a mile away (C) Jim was a few feet away (D) The lights were of different colors
Example Output:
B