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 metal rod is sitting outside and soaks up a lot of energy from a star, so the metal (A) cries (B) wiggles (C) sears (D) dies

Ex Output:
C

Ex Input:
What is the source of cooling that turns lava into land? (A) seawater (B) refrigerators (C) air conditioning (D) glaciers

Ex Output:
A

Ex Input:
Organic mass is gained in the earth by insect (A) JDZ clones (B) mushroom farmers (C) garbage eaters (D) trash removers

Ex Output:
C