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
In all the regions of tooth enamel formation proceeds: 
Select and explain. 
A. Pulp to DEJ., B. DEJ to Pulp., C. DEJ to surface., D. Surface to DEJ.
C: DEJ to surface.
Answer: C: DEJ to surface. 
Explanation: None