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: Medicine
[{'content': "Kayser-Fleischer rings (KF rings) are seen in - \nSelect and explain. \nA. Pterygium, B. Hematochromatos is, C. Wilson's disease, D. Menke's kinked hair syndrome", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]