Barney, an admissions officer, is interviewing a graduate school applicant about whom he has very high positive expectations. Barney is outgoing and cheerful during the interview, and asks the applicant questions that solicit positive information. As a result, Barney is pleased with the applicant's performance and admits her to the school. This decision was most likely the result of: A. the Hawthorne effect. B. a contrast effect. C. a self-fulfilling prophecy. D. entrapment.