This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Microbiology
[{'content': 'Which influenzae strain, not of human origin and can cause pandemic: \nSelect and explain. \nA. H1.N1, B. H2 N2, C. H5 N1, D. H9 N1', 'role': 'user'}, {'content': 'Answer: C \nExplanation: H5N1 ref : ananthanaryana 10ed.', 'role': 'assistant'}]