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: Surgery
[{'content': "Sjogren's syndrome refers to disease of - \nSelect and explain. \nA. Parotid glands, B. Thyroid disease, C. Parathyroid glands, D. Multiple endocrine neoplasia", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]