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.

Example input: 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
Example output: A
Example explanation: Based on the text, his refers to MacKenzie so option A is correct.
Q: He has received numerous awards and grants besides those listed here. He and co-author Kai Bird shared the Pulitzer Prize for Biography or Autobiography in 2006, for their book on Robert Oppenheimer 's life, titled . Sherwin worked on the book for two decades before Bird, a writer (and not a historian), came on to collaborate in piecing all _his_ research together. <sep>, Pronoun: his <sep>, A: Sherwin <sep>, B: Bird
A:
A