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
Reversal lines are a coating found in bone is produced by 
Select and explain. 
A. Osteoblasts, B. Fibroblasts, C. Osteoclasts, D. Cementoblasts
A: Osteoblasts
Answer: A: Osteoblasts 
Explanation: None