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.

Let me give you an example: He grew up in Evanston, Illinois the second oldest of five children including his brothers, Fred and Gordon and sisters, Marge (Peppy) and Marilyn. His high school days were spent at New Trier High School in Winnetka, Illinois. MacKenzie studied with Bernard Leach from 1949 to 1952. _His_ simple, wheel-thrown functional pottery is heavily influenced by the oriental aesthetic of Shoji Hamada and Kanjiro Kawai. <sep>, Pronoun: His <sep>, A: MacKenzie <sep>, B: Bernard Leach
The answer to this example can be: A
Here is why: Based on the text, his refers to MacKenzie so option A is correct.

OK. solve this:
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
Answer:
A