You will be given a definition of a task first, then some input of the task.
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.

Unable to secure the librarianship of the Bodleian whilst fellow, he had instead become tutor to his patron George Nugent-Temple-Grenville, 1st Marquess of Buckingham -- a position which he used to lead two of the Duke's sons and other members of the family to Brasenose; the sons' uncle, Baron Grenville, became the University's Chancellor. Under _his_ leadership into the early nineteenth century, numbers improved dramatically and so did the class of people coming: Brasenose began to be dominated by gentlemen like the Egertons, the Grenvilles, and of Richard Rainshaw Rothwell I. <sep>, Pronoun: his <sep>, A: Baron Grenville <sep>, B: Richard Rainshaw Rothwell I
Output:
A