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': 'Homologous serum jaundice is a disease caused by hepatitis: \nSelect and explain. \nA. Virus A, B. Virus B, C. Virus C, D. None of these', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Homologous serum jaundice is a disease caused by hepatitis virus B.', 'role': 'assistant'}]