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
Conjunctival ulceration may suggest: 
Select and explain. 
A. Embedded foreign body, B. Tuberculosis, C. Syphillis, D. Syphillis
D: Syphillis
Answer: D: Syphillis 
Explanation: Ans. Syphillis