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: Pathology
Charactersitic feature of kidneys in diabetes mellitus is - 
Select and explain. 
A. Nodular sclerosis, B. Fibrin cap, C. Papillary necrosis, D. Diffuse glomerulosclerosis
A: Nodular sclerosis
Answer: A: Nodular sclerosis 
Explanation: None