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
Under normal physiological conditions, cementum shows: 
Select and explain. 
A. Resorption, B. Adaptive mechanism, C. Resorption., D. All of the above.
B: Adaptive mechanism
Answer: B: Adaptive mechanism 
Explanation: None