This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Immunomodulator which is used for genital was is: \nSelect and explain. \nA. A Podophyllum, B. Imiquimod, C. Predrisolone, D. IFN', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Imiquimod is an immunomodulator shown to be effective in the treatment of external genital and perianal was. Ref: Basic and Clinical Pharmacology By Katzung, 10th Edition, Pages 816, 817, 996', 'role': 'assistant'}]