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: Pediatrics
Which of the following is the most common cause of meningoencephalitis in children? 
Select and explain. 
A. Mumps, B. Arbovirus, C. HSV, D. Enterovirus
D: Enterovirus
Answer: D: Enterovirus 
Explanation: 80% of cases of viral meningocencephalitis are caused by enteroviral group of viruses such as echovirus and coxsackie virus. Ref: Adams and Victor's principles of neurology By Allan H. Ropper, Raymond Delacy Adams, Maurice Victor, Robe H. Brown page633.