This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sclera, Subject name: Ophthalmology
[{'content': 'Type of collagen absent in sclera ? \nSelect and explain. \nA. collagen 1, B. collagen 2, C. collagen 3, D. collagen 4', 'role': 'user'}, {'content': "Answer: B \nExplanation: Type 2 is absent in sclera Type 1 is predominamt type of collagen found in sclera with haphazardous arrangement of collagens CORNEA- regular arrangement of collagen bundles of Type 1 (major) and type 3 (minor) in descemet's membrane -collagen type 4 is found.", 'role': 'assistant'}]