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:Which actor, who died in Los Angeles on Jue 11, 1979, holds the record as the actor with the most leading parts with 142, and has a marina named for him near the city of Sequim? ,  Options: [A.John Wayne B.Bruce Wayne] 
[EX A]: A

[EX Q]: Question:Horatio was a legendary Roman hero who defended a bridge against which army? ,  Options: [A.Etruscan B.Tiber] 
[EX A]: B

[EX Q]: Question:What is the favourite drink of a vampire? ,  Options: [A.blood B.Bloody Mary]
[EX A]:
B