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': 'The histology of pterygium includes – \nSelect and explain. \nA. Elastotic degeneration, B. Epithelial inclusion bodies, C. Precancerous changes, D. Squamous metaplasia of the epithelium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The two degenerative conditions of eye cause elastotic degeneration.\n-Pinguecula & Pterygium', 'role': 'assistant'}]