This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Conjuctiva, Subject name: Ophthalmology
[{'content': 'Pinguecula is best characterized histologically by \nSelect and explain. \nA. Fatty degeneration, B. Hyaline degeneration, C. Elastotic degeneration, D. Fibrinoid degeneration', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Elastotic degenerationRef: Kanski 8/e, p. 162, Yanoff 3/e, p. 248Pinguecula is best characterized histologically by Elastotic degeneration.', 'role': 'assistant'}]