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
[{'content': 'Most common congenital tumour of conjunctiva is \nSelect and explain. \nA. Papilloma, B. Squamous cell carcinoma, C. Epibulbar dermoid, D. Melanoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Commonest congenital tumour of the conjunctiva - Epibulbar dermoid', 'role': 'assistant'}]