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 morphogenic stage of amelogenesis 
Select and explain. 
A. Inner enamel epithelium shows short columnar cells, B. Correlates with late bell stage of enamel formation, C. Both, D. None of the above
C: Both
Answer: C: Both 
Explanation: None