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: Medicine
[{'content': 'In the treatment of Hepatitis - C interferon is combined with which drug? \nSelect and explain. \nA. Acyclovir, B. Ribavarin, C. Lamivudine, D. Indinavir', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]