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': 'Least common cause of sporadic encephalitis ? \nSelect and explain. \nA. HSV, B. VZV, C. Arbovirus, D. Rhinovirus', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is `d' i.e., Rhinovirus Causes of viral encephalitis are :- HSV Rabies virus VZV Arboviruses (west rile, eastern equine) CMV", 'role': 'assistant'}]