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
[{'content': 'Acute non-suppurative sialdenitis is seen in: \nSelect and explain. \nA. Acute bacterial sialadenitis, B. Mumps, C. Chronic bacterial sialadenitis, D. Necrotizing sialometaplasia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]