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': 'Most common genetic play in Neisseria infection is- \nSelect and explain. \nA. Male gender, B. HLA b27, C. Complement deficiency, D. IgA deficiency', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]