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").

Ex Input:
This animal thrives while the sun is down (A) the bull shark (B) the snowy owl (C) the prairie dog (D) the spotted giraffe

Ex Output:
B


Ex Input:
A light using energy can cease that activity when (A) light bulbs are gold (B) lights are always on (C) wall switch is adjusted (D) walls are painted blue

Ex Output:
C


Ex Input:
plant life is completely dependent on what? (A) buying some good food (B) creating self sustenance food (C) food given to it (D) food at the store

Ex Output:

B