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:
Redwoods are supported by (A) donations from the environmental protection agency (B) very large and thick trunks (C) twenty chainsaw wielding psychopaths (D) industrial plants near the ocean

Ex Output:
B


Ex Input:
Which doesn't contain water? (A) Sea of Tranquilitiy (B) Caspian Sea (C) Dead Sea (D) Caribbean Sea

Ex Output:
A


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