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: On 3 January 1927, Gibbs was out driving a launch at Port Hacking when he noticed Mervyn Allum struggling in the water. Thinking the youth was drowning, Gibbs made his way to the nose of the launch in order to give assistance to Allum. It was then that Gibbs realised Allum was being attacked by a shark, and _he_immediately dived into the water. <sep>, Pronoun: he <sep>, A: Gibbs <sep>, B: Allum

A