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 premature loss of Reduced Enamel Epithelium (REE) permits connective tissue to come in direct contact with enamel thus depositing a thin layer of cementum on the cervical enamel. This cementum is of which type? 
Select and explain. 
A. Cellular mixed fiber cementum, B. Cellular mixed stratified cementum, C. Acellular extrinsic fiber cementum, D. Acellular afibrillar cementum
D: Acellular afibrillar cementum
Answer: D: Acellular afibrillar cementum 
Explanation: None