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
Least common cause of sporadic encephalitis ? 
Select and explain. 
A. HSV, B. VZV, C. Arbovirus, D. Rhinovirus
D: Rhinovirus
Answer: D: Rhinovirus 
Explanation: Ans. is `d' i.e., Rhinovirus Causes of viral encephalitis are :- HSV Rabies virus VZV Arboviruses (west rile, eastern equine) CMV