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.

One can't buy ready-mixed KCN. Nancy Pearl, Book Lust -- When Stout is on top of his game, which is most of the time, his diabolically clever plotting and his storytelling ability exceed that of any other mystery writer you can name, including Agatha Christie, who invented _her_ own eccentric genius detective Hercule Poirot. <sep>, Pronoun: her <sep>, A: Nancy Pearl <sep>, B: Agatha Christie
B