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.

Example Input: Question:What substance, best known as a poison, was used in small doses in medications as a stimulant, as a laxative, and for enhancing performance in sports? ,  Options: [A.paracetemol B.strychnine] 
Example Output: B

Example Input: Question:What are fairy rings made of? ,  Options: [A.corn B.mushroom] 
Example Output: B

Example Input: Question:The Black Hawk War was for possession of lands east of the Mississippi. In which modern day state was the first confrontation, at Stillman's Run, on 14 May 1832, which resulted in a victory for Chief Black Hawk's Sauk and Fox warriors over the local militiamen commanded by Major Isaiah Stillman? ,  Options: [A.Illinois B.North American Indian] 
Example Output:
B