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: Their daughters were also given husbands of tribes important to the expansion of the Mongol Empire and they were expected to aid their father by taking over power their while their husbands served him as his gurugen, or sons-in-law. The Uyghurs were enemies of the Western Liao and their chieftain requested a marriage alliance with Genghis Khan, hoping to become a 'fifth son' to _him_. <sep>, Pronoun: him <sep>, A: Western Liao <sep>, B: Genghis Khan

B