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: Pathology
Acute non-suppurative sialdenitis is seen in: 
Select and explain. 
A. Acute bacterial sialadenitis, B. Mumps, C. Chronic bacterial sialadenitis, D. Necrotizing sialometaplasia
B: Mumps
Answer: B: Mumps 
Explanation: None