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: Highlights of the 1978-79 season of the Toronto Symphony Orchestra include the world premiere of Van Dijk's The Shadowmaker (1977) under the direction of Mario Bernardi and featuring Canadian baritone Victor Braun. It was performed at Massey Hall in Toronto, October 1978. The work was set to a book of poems called The Shadowmaker written in 1969 by the Canadian poet Gwendolyn MacEwan. The biographer of MacEwan, Rosemary Sullivan, quotes Van Dijk in _her_ book: ``What attracted me to the poetry was the substance behind the subject matter - namely the dream. <sep>, Pronoun: her <sep>, A: MacEwan <sep>, B: Rosemary Sullivan

B