This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary tract, Subject name: Pathology
In which of the following conditions bilateral contracted kidneys are characterized seen 
Select and explain. 
A. Amyloidosis, B. Diabetes mellitus, C. Rapidly progressive glomerulonephritis, D. Benign nephrosclerosis
D: Benign nephrosclerosis
Answer: D: Benign nephrosclerosis 
Explanation: Causes of contracted kidneys ; Chronic glomerulonephrits Benign nephrosclerosis Chronic pyelonephrits