Definition: 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.
Input: He became head of the Department of Anthropology at Mexico City College, which position he held at the time of his passing on January 2, 1951. According to fellow anthropologist Charles E. Dibble, ``In the brief span of a decade, Barlow gave Middle American research an impetus and perspective of enduring consequence. _His_ contributions in Mexican archaeology, classical and modern Nahuatl, Mexican colonial history, and what he preferred to call ''Bilderhandschriften`` are of lasting importance.'' <sep>, Pronoun: His <sep>, A: Charles E. Dibble <sep>, B: Barlow

B