This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diabetes Mellitus, Subject name: Medicine
[{'content': 'MC joint involved in diabetes is? \nSelect and explain. \nA. Ankle, B. Knee, C. Shoulder, D. Foot', 'role': 'user'}, {'content': "Answer: D \nExplanation: Most common joint involved in diabetes is Foot Joint Charcot's joint - Painless, Paralyzed joint Neuropathy Delayed wound repair Angiopathy Non-heading ulcar on soul of test Ankle Joint - in tables dorsalis Knee - OA Shoulder- Syringomyelia - Dilation of central canal of Spinal cord. MC Cervical spine involved", 'role': 'assistant'}]