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
Pathognomonic of trachoma is – 
Select and explain. 
A. Bulbar papillae, B. Palpebral papillae, C. Bulbar follicles, D. Palpebral follicles
C: Bulbar follicles
Answer: C: Bulbar follicles 
Explanation: Follicles are seen most commonly on upper tarsal conjunctiva and fornix. Sometimes, follicles are seen on bulbar conjunctiva where they are considered to be pathognomonic of trachoma.
"Follicles may be seen on bulbar conjunctiva (pathognomic of trachoma)".  — Khurana