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.

He held the two of them for two years in an abandoned and long dried up well causing damage to both of their minds and also physically altering the white dragon's growth. This was never covered in the story line in the series but was revealed in Season 5 Episode 7 when Arthur meets with him and Guinevere commissions him to kill Arthur for her. ``The Dark Tower'' events altered Gwen's beliefs to see Morgana as _her_ only true and loyal friend causing her to distrust and hate Arthur. <sep>, Pronoun: her <sep>, A: Gwen <sep>, B: Morgana
Output:
A