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 vehicle rounds a corner and slips, squealing. The tires at that point experienced (A) less friction (B) more friction (C) free falling (D) zero friction

Ex Output:
B

Ex Input:
What displays the movement of electrons from the base atoms? (A) venus (B) mercury (C) plasma star (D) pluto

Ex Output:
C

Ex Input:
Which are likely slightly larger in size than its liquid counterparts? (A) solid steel (B) solid wood (C) solid glaciers (D) solid mercury

Ex Output:
C