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
The most common complication of mumps is: 
Select and explain. 
A. Myocarditis, B. Orchitis, C. Uveitis, D. Conjunctivitis
B: Orchitis
Answer: B: Orchitis 
Explanation: None