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: In spite of this, ''Sullivan took (Wright) under his wing and gave him great design responsibility.'' As an act of respect, Wright would later refer to Sullivan as Lieber Meister (German for ''Dear Master''). He also formed a bond with office foreman Paul Mueller. Wright would later engage Mueller to build several of _his_ public and commercial buildings between 1903 and 1923. <sep>, Pronoun: his <sep>, A: Wright <sep>, B: Mueller
Output:
A