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: She runs down and opens the door, only to find Mark, carrying a boombox playing Christmas songs and large cue cards on which he has written, without any expectation of reciprocation, that he loves her. As he walks away, Juliet runs after him to give him a quick, innocent kiss and runs back inside. Writer Jamie (Colin Firth) is pushed to Juliet and Peter's wedding by his girlfriend (Sienna Guillory) as _she_ feigns illness. <sep>, Pronoun: she <sep>, A: Juliet <sep>, B: Sienna Guillory

B