This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lens, Subject name: Ophthalmology
[{'content': 'The major function of Major Intrinsic Protein 26 (MIP-26) is - \nSelect and explain. \nA. Glucose transpo in lens, B. Transpo of water in lens, C. Diffusion barrier, D. Capsule of lens', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Major intrinsic proteins of the lens belongs to superfamily of aquaporines and is classified as aquaporine MIP26 or aquaporin 0. It has role in lens transparency.', 'role': 'assistant'}]