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
Arlt\'s line is seen in – 
Select and explain. 
A. Vernal keratoconjunctivitis, B. Pterygium, C. Ocular pemphigoid, D. Trachoma
D: Trachoma
Answer: D: Trachoma 
Explanation: 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.