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.

Moulay Muhammad ibn Abd al-Rahman, also known as Muhammad IV (1830 in Fez -- 16 September 1873 in Fez) (Arabic: **** ********) was the Sultan of Morocco from 1859 to 1873. He was a member of the Alaouite dynasty. Born in Fez, Moulay Muhammad was a son of the Alawite sultan Abd al-Rahman of Morocco. During _his_ father's reign, Muhammad commanded the Moroccan army which was defeated by the French at the Battle of Isly in August 1844. <sep>, Pronoun: his <sep>, A: Abd al-Rahman of Morocco <sep>, B: Muhammad
B