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:
If a mother mammal wants to give her offspring proper nutrients, she would utilize her (A) whiskers (B) toes (C) tail (D) areola

Ex Output:
D


Ex Input:
Which is the least massive? (A) the Earth (B) the moon (C) the sun (D) the solar system

Ex Output:
B


Ex Input:
Rising air pressure means that I should bring (A) black holes (B) sunblock (C) time travel (D) magic

Ex Output:

B