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
Turn over rate of palate and tongue is: 
Select and explain. 
A. 1-6 days, B. 5-6 days, C. 2-3 days, D. 10-12 days
B: 5-6 days
Answer: B: 5-6 days 
Explanation: Turn over rate
Buccal mucosa, hard palate, sulcular epithelium is 5-6 days
JE is 1-6 days.
Marginal and attached gingiva is 10-12 days.