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': 'Western equine encephalitis virus is transmitted by ? \nSelect and explain. \nA. Anophales mosquito, B. Culex mosquito, C. Sandfly, D. Aedes mosquito', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'B' i.e., Culex mosquito", 'role': 'assistant'}]