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
Excess deposition of calcium in the dentinal tubules is referred to as 
Select and explain. 
A. Sclerotic dentin, B. Mantle dentin, C. Interglobular dentin, D. Intertubular dentin
A: Sclerotic dentin
Answer: A: Sclerotic dentin 
Explanation: None