Detailed Instructions: 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.
See one example below:
Problem: Question:Who was the man behind The Chipmunks? ,  Options: [A. David Seville, B. Alvin Seville] 
Solution: A
Explanation: David Seville was the man behind the Chipmunks. So, the correct answer is A.

Problem: Question:What celestial object was visited by the New Horizons spacecraft in 2015? ,  Options: [A.Mars B.pluto] 
Solution:
B