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: Microbiology
[{'content': 'Which of the following can infect ovary: \nSelect and explain. \nA. Mumps virus, B. EBV, C. CMV, D. Measles virus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. Mumps virus', 'role': 'assistant'}]