This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cornea, Subject name: Ophthalmology
Which of the following contains long spaced collagen? 
Select and explain. 
A. Diaphragm, B. Cornea, C. Basement membrane, D. Tympanic membrane
B: Cornea
Answer: B: Cornea 
Explanation: Ans. (b) CorneaRef: Cornea by Mannis, 4/e, p. 897Seen in a number of corneal pathologies like Fuch dystrophy, PPMD, Scheie syndrome, etc.