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
Incremental lines of Salter are found closer in: 
Select and explain. 
A. Cellular cementum., B. Mixed fibers cementum., C. Acellular cementum., D. All of the above.
C: Acellular cementum.
Answer: C: Acellular cementum. 
Explanation: None