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: Ophthalmology
[{'content': 'Most abundant type of Crystalline protein in Lens  is \nSelect and explain. \nA. α Crystallin, B. β Crystallin, C. γ Crystallin, D. δ Crystallin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Among the Crystalline proteins,\xa0β\xa0Crystallin protein forms 55% of the total proteins.', 'role': 'assistant'}]