This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
[{'content': 'Urban malaria is spread by \nSelect and explain. \nA. Anopheles stephensi, B. Anopheles culcifacies, C. Culex fatigans, D. Mansonides', 'role': 'user'}, {'content': "Answer: A \nExplanation: Anopheles.culicifacies is the main vector of rural and peri-urban areas Anopheles.stephensi is responsible for malaria in urban and industrial areas Ref: Park's textbook of preventive and social medicine; 23rd edition", 'role': 'assistant'}]