This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Considerations - Infectious Diseases, Subject name: Pediatrics
[{'content': 'Parotitis and orchitis are common manifestations of: \nSelect and explain. \nA. Diphtheria, B. Measles, C. Rubella, D. Mumps', 'role': 'user'}, {'content': "Answer: D \nExplanation: d. Mumps(Ref: Nelsons' 20/e p 1552-1553, Chai 8/e p 217-218)Mumps is characterized by fever, bilateral or unilateral parotid swelling and tenderness, and the frequent occurrence of meningoencephalitis and orchitis.", 'role': 'assistant'}]