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
Histological marker for dentin presence is 
Select and explain. 
A. NESTIN, B. ARESTIN, C. BETA MICRO GLOBULIN, D. DENTRIN
A: NESTIN
Answer: A: NESTIN 
Explanation: None