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: Pathology
[{'content': 'Incubation period of Hepatitis A \nSelect and explain. \nA. 15-50 days, B. 50-160 days, C. 2-3 weeks, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]