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.

Karelsprivilege is a legendary privilege that Charlemagne allegedly paid to the Frisians led by Magnus Forteman to thank them for the support that was given to _his_ attack on Rome. <sep>, Pronoun: his <sep>, A: Charlemagne <sep>, B: Magnus Forteman
Output:
A