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 mountain top heats and lava flows, resulting in (A) a hot golden leaf (B) a cold deep sea (C) a raised portion of land (D) a sunken valley of ice

Ex Output:
C


Ex Input:
A bean sprout will beautifully boom if given plenty of access to (A) salted dirt (B) H2O (C) sticky napkins (D) searing heat

Ex Output:
B


Ex Input:
A person needs to use a raw material to cool an engine, so they might use (A) H2O in a jug (B) fire in a house (C) salt in a shaker (D) corn in a stove

Ex Output:

A