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:
It is possible to renew (A) sunflowers (B) oil (C) steel (D) stones

Ex Output:
A


Ex Input:
In order for trees to use sunlight they must (A) their roots (B) the light switch (C) CPR (D) respire

Ex Output:
D


Ex Input:
To aid in keeping your outdoor animals warm in the winter (A) put their shelters directly in the way of the wind (B) put their shelters on top of cement (C) attach thermal insulators to their shelters (D) attach shingles to their shelters

Ex Output:

C