Q: In this task, you will be presented with a text, a pronoun from the text, and two candidate names. You should determine what the pronoun refers to and classify the answers into A, B, or Neither. A and B here are referring to option A and option B. Position of the pronoun in the text is showed within two "_"s.
Apparently only Dean and his associate Kelly Peyton knew the truth, the Shed was actually a division of Prophet Five. Dean initially appeared in the first episode of season 5, claiming to be with the CIA's Office of Special Investigations. _He_claimed to be investigating Michael Vaughn as a double agent, however, APO quickly determined Dean was a rogue agent. <sep>, Pronoun: He <sep>, A: Michael Vaughn <sep>, B: Dean
A:
B