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': 'Recurrent Neisseria infections are associated with deficiency of \nSelect and explain. \nA. C5, B. C6, C. C7, D. All of above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: .', 'role': 'assistant'}]