Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
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
Reason: Based on the text, his refers to MacKenzie so option A is correct.

Now, solve this instance: He also published an edition of Ptolemy's Almagest. Heiberg was born in Denmark, the son of Johanne Henriette Jacoba (n*e Schmidt) and Emil Theodor Heiberg. Heiberg was Professor of Classical Philology at the University of Copenhagen from 1896 until 1924. Among _his_ more than 200 publications were editions of the works of Archimedes(1880 and 1912), Euclid (with Heinrich Menge) (1883--1916), Apollonius of Perga (1891--93), Serenus of Antinouplis (1896), Ptolemy (1898/1903), and Hero of Alexandria (1899). <sep>, Pronoun: his <sep>, A: Heiberg <sep>, B: Heinrich Menge
Student:
A