You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
This task involves asking a question, providing a set of 2 options. You are expected to choose the best answer to the question. The output will be in the form of A or B, corresponding to which option is chosen.

Question:Who was the man behind The Chipmunks? ,  Options: [A. David Seville, B. Alvin Seville] 
Solution: A
Why? David Seville was the man behind the Chipmunks. So, the correct answer is A.

New input: Question:What tune do the bells of Big Ben chime? ,  Options: [A.four notes from handel s messiah B.UK Parliament] 
Solution:
B