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: He quoted extensively from Scottish jurist Baron Hume, and American psychiatrist Isaac Ray. Witnesses were produced from Glasgow to give evidence about M'Naghten's odd behaviour and complaints of persecution. The defence then called on a number of medical witnesses, including Dr Edward Monro, Sir Alexander Morison, and Dr Forbes Winslow, who testified that M'Naghten's delusions had deprived _him_ of ``all restraint over his actions''. <sep>, Pronoun: him <sep>, A: Alexander Morison <sep>, B: M'Naghten

B