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': 'MC anopheles vector for transmission of malaria in urban area is: \nSelect and explain. \nA. An stephensi, B. A. gambiae, C. Both, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. An stephensi', 'role': 'assistant'}]