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: Kiribati competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's fourth consecutive appearance at the Summer Olympics. The Kiribati team consisted of three athletes: track sprinters John Ruuka and Karitaake Tewaaki, and weightlifter David Katoatau, who reprised _his_ role of leading the delegation for the third straight time as the nation's flag bearer in the opening ceremony. <sep>, Pronoun: his <sep>, A: John Ruuka <sep>, B: David Katoatau

B