This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Musculoskeletal system, Subject name: Anatomy
[{'content': 'Tophi in gout are found In all regions except \nSelect and explain. \nA. Bone, B. Skin, C. Muscle, D. Synol membrane', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Reference Robbins page no 8th edition 1243', 'role': 'assistant'}]