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 basement membrane that separates the enamel organ and the dental papilla just prior to dentin formation is called as: 
Select and explain. 
A. Stellate reticulum., B. Outer enamel epithelium., C. Membrana preformativa., D. Inner enamel epithelium.
C: Membrana preformativa.
Answer: C: Membrana preformativa. 
Explanation: The basement membrane that separates the enamel organ and the dental papilla just prior to dentin formation is called the membrana preformativa.