This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of skin, Subject name: Dental
Type of collagen present in vitreous humor 
Select and explain. 
A. Collagen type 1, B. Collagen type 2, C. Collagen type 3, D. Collagen type 4
B: Collagen type 2
Answer: B: Collagen type 2 
Explanation: COLLAGEN Ref:- Sima Jain; pg num:- 10