This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Conjunctiva, Subject name: Ophthalmology
Papillae are seen in - 
Select and explain. 
A. Trachoma, B. Viral conjunctivitis, C. Spring catarrh, D. All the above
D: All the above
Answer: D: All the above 
Explanation: Papillae are seen as reddish raised areas with flat tops and velvety appearance. These represent areas of vascular and epithelial hyperplasia. Papillae are seen in following conditions:  Trachoma  Spring catarrh  Allergic conjunctivitis  Giant papillary conjunctivitis ref: A K KHURANA OPHTALMOLOGY,E4, Page-470