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: What conducts electricity? (A) a lego brick (B) suit of armor (C) a wooden table (D) a T-shirt
Example Output: B

Example Input: Two females usually can produce (A) children (B) a progeny (C) offspring (D) nothing
Example Output: D

Example Input: Which orbits a star? (A) Neptune (B) a galaxy (C) the sun (D) the moon
Example Output:
A