Definition: 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.
Input: By the end of 2002, Dyer engineered Schumacher at the tests, and after the championships had been won, at the last three races at Monza, Indianapolis and Suzuka. Dyer then race engineered Michael Schumacher to _his_ 2003 and 2004 world titles, famously appearing with the German on the podium after his triumph at the 2003 Canadian Grand Prix. <sep>, Pronoun: his <sep>, A: Dyer <sep>, B: Michael Schumacher

A