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: Microbiology
[{'content': 'Hepatitis E usually affects ? \nSelect and explain. \nA. Children, B. Adults, C. Old age, D. Toddlers', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is `b' i.e., Adults", 'role': 'assistant'}]