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': "Arlt\\'s line is seen in – \nSelect and explain. \nA. Vernal keratoconjunctivitis, B. Pterygium, C. Ocular pemphigoid, D. Trachoma", 'role': 'user'}, {'content': 'Answer: D \nExplanation: A characteristic white conjunctival scar, called Arlt line, is usually fainted at the junction between the lower third and upper two-third of the superior tarsus.', 'role': 'assistant'}]