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:
Flora requires chlorophyll to (A) moonlight (B) undergo natural development (C) starlight (D) dairy

Ex Output:
B


Ex Input:
A a switch turns something with batteies on because: (A) electrons are then disturbed (B) a piece of metal closes the circuit (C) it lets the acid free (D) the circuit is opened

Ex Output:
B


Ex Input:
Muscles pull on bones in order to move them; which is an example of that? (A) shaking your head in frustration (B) rolling your eyes at someone (C) wiggling your tongue in your mouth (D) wrinkling your nose at a smell

Ex Output:

A