You will be given a definition of a task first, then some input of the task.
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.

On May 1, 2007 it was announced that O'Neill would replace Jim Rosborough as the assistant coach to Hall of Famer Lute Olson at the University of Arizona. O'Neill was an assistant under Olson during Arizona's rise to national prominence in the 1980s, and used it as a launching board to attain _his_ first major head coaching position at Marquette. <sep>, Pronoun: his <sep>, A: O'Neill <sep>, B: Olson
Output:
A