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
With reference to mumps which of the following is true - 
Select and explain. 
A. Meningoencephalitis can preced parotitis, B. Salivary gland involvement is limited to the parotid, C. The patient is not infectious prior to clinical parotid enlargement, D. Mumps orchitis frequently leads to infeility
A: Meningoencephalitis can preced parotitis
Answer: A: Meningoencephalitis can preced parotitis 
Explanation: Mumps meningitis may occasionally occur in the absence of parotitis. Mumps meningitis and encephalitis usually resolve without deafness REF:ANANTHANARYANAN TEXTBOOK OF MICROBIOLOGY 9EDITION PGNO.508