This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'Swine flu is known as \nSelect and explain. \nA. H5N1, B. H1N1, C. H1N5, D. H1N2', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans: b) HIN1A simple one. Swine flu is also known as H1N1.', 'role': 'assistant'}]