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: Unknown
[{'content': 'Ocular symptom of Von Recklinghausen disease is \nSelect and explain. \nA. Deformed anterior chamber with reduced angle of AC, B. Glaucoma, C. Choroidal hemangioma, D. Subretinal neovascularization', 'role': 'user'}, {'content': 'Answer: B \nExplanation: • NF-1 is the most common phakomatosis, affecting 1:4000 individuals, and presents in childhood.\n• The gene locus is on 17q11.', 'role': 'assistant'}]