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:
A big cat looks for prey (A) at 3pm (B) at 11pm (C) at 9am (D) at noon

Ex Output:
B


Ex Input:
A storm ravages a town for a week straight, complete with deluges of rain. If someone in that town needs a source of water, it is (A) everywhere (B) missing (C) in short supply (D) rare

Ex Output:
A


Ex Input:
A squirrel eats all of the acorns in a tree. The tree is empty, and the squirrel is still hungry, so (A) the squirrel studies (B) the squirrel leaves (C) the squirrel breeds (D) the squirrel flies

Ex Output:

B