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: Social & Preventive Medicine
[{'content': '"Nuisance mosquito" is- \nSelect and explain. \nA. Anopheles, B. Culex, C. Tsetse fly, D. None', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Culex", 'role': 'assistant'}]