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: Lewis Hamilton went past Romain Grosjean for sixth place on lap 67, closing on Fernando Alonso, but was eventually unable to catch him, who scored McLaren's best finish of the season up to that point. The race was also Honda's 350th Grand Prix as an engine supplier and the first time that the renewed partnership with McLaren scored a double points finish. By winning _his_ first Hungarian Grand Prix, and 41st Grand Prix overall, Vettel matched Ayrton Senna for third-most Formula One career wins. <sep>, Pronoun: his <sep>, A: Vettel <sep>, B: Ayrton Senna

A