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: A short while later, Michael decided that he wanted to play a role in his son's life, and tried to get Lisa to marry him, but by this time, she wanted nothing to do with him. Around the same time, Lisa's son Tom (who'd been SORASed to his late teens) had returned from Vietnam with a drug habit. One night, Michael caught Tom breaking into _his_ office to steal drugs, and he used this information to blackmail Lisa into marrying him. <sep>, Pronoun: his <sep>, A: Michael <sep>, B: Tom

A