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:
positively impact your bodies strength by (A) dead-lifting (B) thinking (C) sleeping (D) singing

Ex Output:
A


Ex Input:
A stone may experience the most weathering over (A) a week (B) a year (C) a century (D) a decade

Ex Output:
C


Ex Input:
Polar bears grew thick fur because (A) they wanted to be hunted and end up on someone's living room floor (B) it helps them survive in frigid places (C) it helps them live in the desert (D) it's helpful in a rain forest

Ex Output:

B