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: However, it is unclear if this is a true secondary mutation or if this is the result of permanent alteration to his genetic structure resulting from self-experimentation and the mutagenic abilities of Infectia. Emma Frost: Emma's secondary mutation activated in the midst of the bombing of Genosha by Cassandra Nova's wild Mega-Sentinels. _She_ transformed into an indestructible organic diamond form that saved her life, but negates her telepathy so she cannot use both powers at once. <sep>, Pronoun: She <sep>, A: Emma <sep>, B: Cassandra Nova
Output:
A