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.
Q: He has also closely worked with Pink Floyd guitarist David Gilmour as a recording engineer on his 1984 solo album About Face and also engineered his On an Island album, the Live in Gda*sk album, the David Gilmour in Concert DVD and Remember That Night DVD. He also engineered Roger Waters ' first full length solo album The Pros and Cons of Hitchhiking. In addition to _his_ work with Pink Floyd since 1982, Andrew has also worked with bands like Heatwave, The Boomtown Rats (most notably mixed their hit ``I Don't Like Mondays'') and goth rock group Fields of the Nephilim. <sep>, Pronoun: his <sep>, A: Roger Waters <sep>, B: Andrew
A:
B