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: Pathology
[{'content': 'Vitreous humor of eye contains collagen type: \nSelect and explain. \nA. Colagen I, B. Collagen II, C. Collagen III, D. Collagen IV', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Collagen II', 'role': 'assistant'}]