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
Inorganic content of cementum is: 
Select and explain. 
A. Less than bone, B. More than bone, C. Equal to that of bone, D. More than that of enamel
A: Less than bone
Answer: A: Less than bone 
Explanation: None