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:
Who is most likely to die of old age? (A) adults (B) children (C) infants (D) reasonable high-school students

Ex Output:
A


Ex Input:
Living underground can be used for hiding from what? (A) food (B) hunters (C) dirt (D) water

Ex Output:
B


Ex Input:
Cactus store their liquids in their (A) flowers (B) lockers (C) super market (D) trunks

Ex Output:

D