Given the task definition and input, reply with output. 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.

Clay's group was chosen to maintain electronic equipment during the planned invasion of Japan. After separation from the Army, Clay completed both the Bachelor's (1947) and Masters (1948) degrees in Physics at Kansas State University. At the University of Wisconsin-Madison, _his_ doctoral dissertation under Professor Gibson Winas was entitled, ``Field Strengths and Spectra of High Frequency Gas Discharges.'' <sep>, Pronoun: his <sep>, A: Clay <sep>, B: Professor Gibson Winas
A