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.

[EX Q]: 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] 
[EX A]: B

[EX Q]: Question:Caroline of Brunswick was the queen of which British king? ,  Options: [A.Sam II B.George IV] 
[EX A]: B

[EX Q]: Question:What are the table-top mountains found in the Guiana Highlands of South America (especially Venezuela) that inspired Arthur Conan Doyle's The Lost World and also appear prominently in the landscapes of the Pixar hit Up? ,  Options: [A.Tepui B.duck] ,  Search result URL:
[EX A]:
A