This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy, Development and clinical examination, Subject name: Ophthalmology
[{'content': 'Relative state of dehydration of cornea is maintained by \nSelect and explain. \nA. Active Na-K-ATPase pump of the corneal endothelium, B. Peculiar arrangement of corneal lamellae, C. Avascularity of cornea, D. All of the above.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Corneal transparency The transparency is the result of : 1) Peculiar arrangement of corneal lamellae (lattice theory of Maurice), 2) Avascularity, and 3)\x01Relative state of dehydration, which is maintained by barrier effects of epithelium and endothelium and the active bicarbonate pump of the endothelium. Ref:- A K KHURANA; pg num:-90', 'role': 'assistant'}]