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
[{'content': 'All of the following viruses cause pneumonia except- \nSelect and explain. \nA. Cytomegalovirus, B. Mumps, C. Measles, D. Retrovirus', 'role': 'user'}, {'content': "Answer: B \nExplanation: complications of mumps include epididymo orchitis,meningitis ,meningoencephalitis, and less common comolicatiin include ahritis ,oophoritis ,pancreatitis etc. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:508", 'role': 'assistant'}]