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:
In the food chain process what has the role of producer? (A) eaters (B) flora (C) carnivore (D) consumers

Ex Output:
B


Ex Input:
How does erosion impact a river? (A) enlargening (B) warming (C) heightening (D) shrinking

Ex Output:
A


Ex Input:
If I wanted to create noise I could (A) tap a chopstick on a pillow (B) stand completely and utterly still (C) hold in a fart (D) remain completely and utterly silent

Ex Output:

A