This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lens, Subject name: Ophthalmology
[{'content': "Sunflower cataract is Seen in \nSelect and explain. \nA. Haemochromatosis, B. Wilson's disease, C. Galactosemia, D. Diabetes milletus", 'role': 'user'}, {'content': "Answer: B \nExplanation: A typical 'sunflower cataract' is seen in disorder of copper metabolism (Wilson's disease). It is produced by deposition of copper under the posterior capsule of the lens. It is brilliant golden green in colour and arranged like the petals of a sun flower. Ref:- A K Khurana; pg num:-410,476,", 'role': 'assistant'}]