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
Lamina densa of the basal lamina beneath the epithelium is composed of 
Select and explain. 
A. Type I Collagen, B. Type II Collagen, C. Type III Collagen, D. Type IV Collagen
D: Type IV Collagen
Answer: D: Type IV Collagen 
Explanation: None