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:
Some animals get caught easily by other animals because they are slow while the predators are (A) Nice (B) speedy (C) manipulative (D) crazy

Ex Output:
B

Ex Input:
Which of the following most likely led to certain rocks having less friction? (A) a babbling brook (B) people (C) a light wind (D) money

Ex Output:
A

Ex Input:
Meadow voles consume (A) producers (B) apex predators (C) decomposers (D) detritivores

Ex Output:
A