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
Following is not a variety of entropion ? 
Select and explain. 
A. Pathological, B. Spastic, C. Cicatrix, D. Involutional
A: Pathological
Answer: A: Pathological 
Explanation: Ans. is 'a' i.e., Pathological