Given the task definition, example input & output, solve the new input case.
You are given a question and some answer options (associated with "A", "B", "C", "D"). You should choose the correct answer based on commonsense knowledge. Avoid answering questions based on associations, the set of answers are chosen deliberately to capture common sense beyond associations. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D', 'E' and only give one answer for each question.
Example: Where would you find magazines along side many other printed works?
(A)doctor (B)bookstore (C)market (D)train station (E)mortuary
Output: B
libraries contains magazines and many other printed works.

New input case for you: What do singers need to do before a show?
(A)warm up (B)use microphones (C)clear throats (D)create music (E)sound beautiful
Output:
A