You will be given a definition of a task first, then some input of the task.
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.

Together with its sister school, the School of St Helen and St Katharine in Abingdon, St Mary's was run by the sisters of the Community of St Mary the Virgin and was based in the Queen Anne house on Newbury Street. Sister Ellen was the first Sister-in-Charge and Sister Juliana succeeded _her_ in 1887. <sep>, Pronoun: her <sep>, A: Ellen <sep>, B: Sister Juliana
Output:
A