You will be given a definition of a task first, then some input 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.

Aviation historian Phil Scott in The Shoulders of Giants: A History of Human Flight to 1919 (1995, ISBN 0201627221) wrote that he does not consider Herring a candidate for the first flight claim. Scott says Herring's glider was difficult to steer and _his_ two-cylinder, three-horsepower compressed air engine could operate for only 30 seconds at a time. <sep>, Pronoun: his <sep>, A: Scott <sep>, B: Herring
Output:
B