Instructions: 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 August 26, 1831, Biddle's brother, Thomas, a War of 1812 veteran, was killed in a duel on Bloody Island (Mississippi River) at St. Louis, Missouri with Congressman Spencer Pettis. Thomas had taken offense to Pettis' criticizing Nicholas at the bank. After an exchange of letters to the editor Biddle accosted an ill Pettis in _his_ hotel room. <sep>, Pronoun: his <sep>, A: Biddle <sep>, B: Pettis
Output:
B