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: Pediatrics
[{'content': 'Treatment of choice in 11 years old children with hepatitis C infections – \nSelect and explain. \nA. Vaccine, B. Interferon, C. Gamma–globulin, D. Corticosteroids', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Amongst the given options only IFN-a is used.', 'role': 'assistant'}]