You will be given a definition of a task first, then an example. Follow the example to solve a new instance 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.

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
Solution: A
Why? Based on the text, his refers to MacKenzie so option A is correct.

New input: His lifetime work was the research and publication of the genealogy of the Scottish Livingston family of Callendar, and the offshoots of the family that sought their fortune in colonial America. These included, Robert ``the Founder'', Governor William Livingston of New Jersey and his brother Philip who was a signer of the Declaration of Independence, Judge Robert R. Livingston of Clermont and _his_ son, plus Edward Livingston, the friend and adviser of Andrew Jackson. <sep>, Pronoun: his <sep>, A: Philip <sep>, B: Robert R. Livingston
Solution:
B