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:
Which event can lead to the human caused change of an environment? (A) seasonal storms (B) annual flooding (C) natural woodland fires (D) clear cutting

Ex Output:
D


Ex Input:
A person in a suit near a sunken ship is sprayed in the face with a dark substance by (A) a cephalopod (B) a bear (C) a hose (D) a pencil

Ex Output:
A


Ex Input:
when organisms die, they (A) reproduce (B) wither away (C) petrify (D) regenerate

Ex Output:

B