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
Seen in trachoma are/is: 
Select and explain. 
A. Papillary hyperophy, B. Follicles, C. Panus formation, D. All
D: All
Answer: D: All 
Explanation: A i.e. Papillary hyperophy; B i.e. Follicles; C i.e. Panus formation