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': "Branching posterior spoke like cataracts (Propeller) are seen in: \nSelect and explain. \nA. Down's syndrome, B. Fabry's disease, C. Neuro fibromatosis, D. Atopic keratoconjunctivitis", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. Fabry's disease", 'role': 'assistant'}]