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
Cementum formation is seen 
Select and explain. 
A. After dentin formation, B. Before dentin formation, C. Both are formed at same time, D. None of the above
A: After dentin formation
Answer: A: After dentin formation 
Explanation: None