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
[{'content': '"Ropy discharge" from the eye is seen in - \nSelect and explain. \nA. Phylectenular conjunctivitis, B. Swimming pool conjunctvitis, C. Spring catarrh, D. Epidemic keratoconjunctivitis', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ropy (Stringy) discharge is seen in vernal keratoconjunctivitis. Ref: Parson's 22nd/e p.180-181 & 21st/e p.178; Khurana 7th/e p.81 & 4th/e p.74", 'role': 'assistant'}]