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
[{'content': 'Which of the following contains long spaced collagen? \nSelect and explain. \nA. Diaphragm, B. Cornea, C. Basement membrane, D. Tympanic membrane', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) CorneaRef: Cornea by Mannis, 4/e, p. 897Seen in a number of corneal pathologies like Fuch dystrophy, PPMD, Scheie syndrome, etc.', 'role': 'assistant'}]