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
The periodontal ligament 
Select and explain. 
A. Derives its blood supply primarily from the branches of vessels entering the pulp, B. Has a slow rate of turnover, C. Contains epithelial cells of malassez, D. Comprises primarily of type 2 collagen
C: Contains epithelial cells of malassez
Answer: C: Contains epithelial cells of malassez 
Explanation: None