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: There is a contemporary tract, Altercatio inter Urbanum et Clementum, arguing the two popes claims should be adjudicated by a council. In March 1095 Conrad attended the Council of Piacenza and confirmed his stepmother Eupraxia's accusations that Henry IV was a member of a Nicolaitan sect, participated in orgies and had offered Eupraxia to Conrad, stating that this was the reason for _his_ turning against his father. <sep>, Pronoun: his <sep>, A: Henry IV <sep>, B: Conrad
Solution:
B