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.

Therefore, he laid siege to this city and meanwhile captured Sipontum. Marcus Vipsanius Agrippa, a close friend of Octavian and able general, could retake Sipontum, but Rullus, who commanded 1500 horsemen, lost a cavalry battle near the town of Hyria, although Antony had only 400 riders at _his_ side. <sep>, Pronoun: his <sep>, A: Octavian <sep>, B: Antony
B