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: Medicine
[{'content': "All are true regarding Mumps, EXCEPT \nSelect and explain. \nA. Incubation period 18-21 days, B. Extensive tissue damage, C. Multiplies in respiratory epithelium, D. Spreads through Stenson's duct to Parotid gland", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]