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
In an adult, Unilateral smooth contracted kidney with hypertension is seen in - 
Select and explain. 
A. Stenosis of renal artery, B. Chronic GN, C. Renal cell Ca, D. Pyelonephritis
A: Stenosis of renal artery
Answer: A: Stenosis of renal artery 
Explanation: None