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': 'Hemophilus influenzae requres: \nSelect and explain. \nA. Factor V, B. Factor X, C. Factor V & X, D. Factor VII', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is. 'c' i. e., Factor V & X", 'role': 'assistant'}]