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 was raised by his great-grandmother until he was 11, when he was placed in a foster home in Kansas City, Missouri. He was soon running with the wrong crowd, and at the age of 13 was threatened with a four-year stretch in reform school for buying alcohol under-age. However, the headmaster of _his_ high school, Hugh Oliver Cook, knew that Leonard was being habitually assaulted by the guardian of the foster home, and offered to adopt him if he were not jailed. <sep>, Pronoun: his <sep>, A: Hugh Oliver Cook <sep>, B: Leonard
B