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 is a byproduct of a lightbulb? (A) taste (B) death (C) warmth (D) sound

Ex Output:
C


Ex Input:
Every 1440 minutes (A) the moon is full (B) there's a lunar eclipse (C) a new year starts (D) the sun sets in the west

Ex Output:
D


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