Q: In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.
Question: How many people worked at Artforum the year Diehl moved to New York? Passage:Born in Philadelphia and raised in Chicago, Diehl attended MacMurray College in Illinois for two years, after which she married a graduate student at Yale University (since divorced) and moved to New Haven, Connecticut. She returned to Chicago in the early 1970s and began painting among a group of women artists, including Barbara Blades, Liz Langer, Sandra Perlow and Fern Shaffer, studying at the Evanston Art Center with artist Corey Postiglione. Diehl was soon active in the art scene that flourished in Chicago, exhibiting her work at galleries such as Richard Gray, Michael Wyman, Jan Cicero, and N.A.M.E. Gallery, and writing articles and reviews for the New Art Examiner, where she became Managing Editor. She had her first individual exhibition at Roy Boyd Gallery in 1980. During this time, her work was reviewed in the New Art Examiner, the Chicago Sun-Times, the Chicago Tribune, and the Chicago Daily News. In 1976, Diehl moved to New York to work as assistant to John Coplans, then editor of Artforum magazine.

A:
b