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: Dental
[{'content': 'Turn over rate of palate and tongue is: \nSelect and explain. \nA. 1-6 days, B. 5-6 days, C. 2-3 days, D. 10-12 days', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Turn over rate\nBuccal mucosa, hard palate, sulcular epithelium is 5-6 days\nJE is 1-6 days.\nMarginal and attached gingiva is 10-12 days.', 'role': 'assistant'}]