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: The bear in the wild needs to find other animals to feast. (A) they are killers (B) they only eat (C) they never kill (D) they are docile
Example Output: A

Example Input: Within a twenty four hour period, a person could experience (A) a globe's complete rotation (B) thirty hours of night (C) a day on Pluto (D) a year of schooling
Example Output: A

Example Input: Flashlights run on batteries in order to light up. Those use chemical energy, light uses (A) mechanical energy (B) Light energy (C) Hyper energy (D) solar energy
Example Output:
B