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:
Rubber can protect from (A) cold (B) burns (C) electricity (D) fire

Ex Output:
C


Ex Input:
Which would likely decrease the food in an environment? (A) gravity (B) water evaporation (C) a tree (D) time

Ex Output:
B


Ex Input:
which of these would result in reversal of desertification? (A) sowing a seed for each felled tree (B) cutting down as many trees as possible (C) taking all the water away from deserts (D) all of these

Ex Output:

A