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:
What does electrical energy become when a light bulb is turned on? (A) energy newly derived from radiation (B) energy derived from its motion (C) energy  that can be seen and used to see the matter around us (D) solar and wind energy

Ex Output:
C


Ex Input:
What does a seismograph measure? (A) the motion produced by underground collisions (B) the quaking of a man in fear (C) how strong the earth quakes beneath a stampeding herd (D) how strong waves can break plates

Ex Output:
A


Ex Input:
Naomi looks around outside on a prairie and it is cloudless but the sun is nowhere to be seen. It is (A) night (B) noon (C) morning (D) afternoon

Ex Output:

A