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': 'S shaped eyelid is seen in: \nSelect and explain. \nA. Plexiform neurofibroma, B. Hemangioma, C. Aerio venious fistula, D. Varix', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Plexiform neurofibroma', 'role': 'assistant'}]