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: When the old man was much younger, he still had (A) brown eyes (B) baldness (C) gray hair (D) wrinkled skin
Example Output: A

Example Input: If a thing is using other animals for nourishment, then the thing is a (A) predator (B) producer (C) inanimate (D) herbivore
Example Output: A

Example Input: What gives off light? (A) scorching logs (B) dirt (C) water (D) fire drills
Example Output:
A