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': 'Corneal epithelium is composed of: \nSelect and explain. \nA. Stratified keratinized epithelium, B. Stratified non-keratinized epithelium, C. Columnar epithelium, D. Pseudostratified epithelium', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Stratified non-keratinized epithelium', 'role': 'assistant'}]