Instructions: 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: Their poor receptions disillusioned Murnau, and he quit Fox to journey for a while in the South Pacific. Together with documentary film pioneer Robert Flaherty, Murnau travelled to Bora Bora to realize the film Tabu in 1931. Flaherty left after artistic disputes with Murnau who had to finish the movie on _his_ own. <sep>, Pronoun: his <sep>, A: Flaherty <sep>, B: Murnau
Output:
B