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 bear hibernates through cold weather because (A) bears get very tired (B) it is gestating young (C) resources are scarce in winter (D) winter is too cold

Ex Output:
C


Ex Input:
When is fog most likely to occur (A) 3 p.m. (B) midnight (C) 6 p.m. (D) noon

Ex Output:
B


Ex Input:
A plant that using transpiration is (A) filtering liquid nicotine (B) adjusting water content (C) evaporating oils (D) flavoring leaves

Ex Output:

B