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:
harming an animal species causes that animal 's population to do what? (A) explode (B) rise (C) plummet (D) burst

Ex Output:
C


Ex Input:
If you fly from Europe to Australia in December, when you arrive you will most likely want to wear: (A) heavy coat (B) mittens (C) shorts (D) ski mask

Ex Output:
C


Ex Input:
if a chemical reaction occurs, it might have been triggered by which of these? (A) a person yelling at it (B) a person walking by it (C) a person looking at it intently (D) a person cranking up the room heater

Ex Output:

D