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:In which year was the first robbery for which it is known that Jesse James was responsible, of the Davies's County Savings Association in Gallatin, Missouri, during which Jesse shot and killed the cashier, Captain John Sheets? ,  Options: [A.1898 B.1869]
[EX A]: B

[EX Q]: Question:What separates Wales from Devon, England? ,  Options: [A.Welsh Channel B.Devon] 
[EX A]: B

[EX Q]: Question:Which event held in Alberta, Canada, which bills itself as The Greatest Outdoor Show on Earth, is a large festival, exhibition, and rodeo held for 10 days every summer in July, attracts more than 1.2 million visitors? ,  Options: [A.Calgary Stampede B.Christmas]
[EX A]:
A