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: Hilbert obtained his doctorate in 1885, with a dissertation, written under Ferdinand von Lindemann, titled *ber invariante Eigenschaften spezieller bin*rer Formen, insbesondere der Kugelfunktionen (``On the invariant properties of special binary forms, in particular the spherical harmonic functions''). Hilbert remained at the University of K*nigsberg as a Privatdozent (senior lecturer) from 1886 to 1895. In 1895, as a result of intervention on _his_ behalf by Felix Klein, he obtained the position of Professor of Mathematics at the University of G*ttingen. <sep>, Pronoun: his <sep>, A: Hilbert <sep>, B: Felix Klein

A