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: Orthopaedics
[{'content': 'Which of the following is not affected in gout? \nSelect and explain. \nA. Muscle, B. Skin, C. Cartilage, D. Tendon', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Gouty arthritis : Joints (Toes, tarsus, ankle, hand), Bursa.\nTophi: Articular cartilage, Periarticular ligaments, tendons, earlobes, kidney, nasal cartilage, the skin of fingertips, palms & soles.', 'role': 'assistant'}]