Detailed Instructions: 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.
Problem:From 2005 to 2007, he was Chief of Staff to U.S. Deputy Attorney General Paul McNulty. From October 2005 to October 2006, he was also an ex officio member of the United States Sentencing Commission. In September 2006, the Department of Justice gave Elston its highest award presented to attorneys for contributions and excellence in legal performance--the John Marshall Award -- ``for _his_ outstanding legal advice, leadership and excellence related to the appellate work of the Eastern District of Virginia.'' <sep>, Pronoun: his <sep>, A: Elston <sep>, B: John Marshall
Solution:
A