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: It continues the story from her first novel Every Day is Mother's Day and is set some ten years later with the same cast of characters. Muriel Axon has been released from a mental institution under the Care in the Community programme and seeks revenge on those whom she blames for putting her there -- Isabel Field _her_ social worker, now unhappily married to an assistant bank manager, Isabel's father who it transpires was the father of Muriel's baby, and Colin Sidney who now lives in Muriel's old house and whose daughter is now pregnant by Isabel's husband. <sep>, Pronoun: her <sep>, A: Isabel <sep>, B: Muriel

B