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: The crater, Ulugh Beigh, on the Moon, was named after him by the German astronomer Johann Heinrich von M*dler on his 1830 map of the Moon. 2439 Ulugbek, a main-belt asteroid which was discovered on 21 August 1977 by N. Chernykh at Nauchnyj, was named after _him_. <sep>, Pronoun: him <sep>, A: Ulugbek <sep>, B: N

B