Q: 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.
Her Santa Fe Opera debut in 2005 was as Nuria in the revised edition of Golijov's Ainadamar. She sang on the subsequent Deutsche Grammophon recording of the opera. For his opera Doctor Atomic, Adams rewrote the role of Kitty Oppenheimer, originally a mezzo-soprano role, for soprano voice, and Rivera sang the rewritten part of Kitty Oppenheimer at Lyric Opera of Chicago, De Nederlandse Opera, and the Metropolitan Opera., all in 2007. _She_ has since sung several parts and roles in John Adams' works, including the soprano part in El Ni*o, and the role of Kumudha in A Flowering Tree in the Peter Sellars production at the New Crowned Hope Festival in Vienna. <sep>, Pronoun: She <sep>, A: Kitty Oppenheimer <sep>, B: Rivera
A:
B