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: Social & Preventive Medicine
[{'content': 'Most common presentation of mumps ? \nSelect and explain. \nA. Pain and lacrimation of eye, B. Pain and swelling of parotid glands, C. Pain and swelling of submandibular and sublingual glands, D. Aseptic meningitis', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Pain and swelling of parotid glands", 'role': 'assistant'}]