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: Constantina was proclaimed an Augusta while both Sophia and Anastasia also kept the same title. John of Ephesus mentions all three Augustas residing in the Great Palace. Anastasia was the first of the three ladies to die. Theophanes places her death in 593. Constantina seems to have enjoyed better relations with Sophia than _her_ mother did. <sep>, Pronoun: her <sep>, A: Constantina <sep>, B: Sophia

A