This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'The vector of Japanese B encepalitis virus is - \nSelect and explain. \nA. Anopheles mosquito, B. Culex mosquito, C. Aedes mosquito, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Culex triaeniorhynchus, a rural mosquito is a principal vector<\\p> REF:ANATHANARAYANAN MICROBIOLOGY NINTH EDITION PAGE.520', 'role': 'assistant'}]