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:
The everglades where nearly wiped out by (A) the sun (B) builders (C) sea cows (D) alligators

Ex Output:
B


Ex Input:
Buttercups can produce (A) their own nutrients (B) grow in space (C) ride horses (D) enter singing competitions

Ex Output:
A


Ex Input:
What can be formed by damming a river? (A) metals (B) H2O body (C) fires (D) mountains

Ex Output:

B