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': 'Most common lesion in diabetic nephropathy \nSelect and explain. \nA. fibrin caps, B. Capsular drops, C. Diffuse glomerulosclerosis, D. Kimmelstiel Wilson nodule', 'role': 'user'}, {'content': 'Answer: C \nExplanation: m/c - Diffuse glomerulosclerosis\xa0\nPathognomonic -\xa0Kimmelstiel Wilson nodule', 'role': 'assistant'}]