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:
Which two forces are likely the cause of canyons? (A) water plus fire (B) fire and brimstone (C) water plus gravity (D) H20 and lemmings

Ex Output:
C


Ex Input:
Butterflies will often times have coloring that at look like eyes on their wings for (A) to look pretty (B) fun (C) to see flowers (D) protection

Ex Output:
D


Ex Input:
as rainfall increases in an area, electricity will be less and less available for (A) solar panels (B) energy (C) coal power plants (D) wind turbines

Ex Output:

A