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: Surgery
Auto nephrectomy is seen in - 
Select and explain. 
A. Sickle cell anemia, B. Renal T.B., C. Sarcoidosis, D. Lymphoma
B: Renal T.B.
Answer: B: Renal T.B. 
Explanation: Ans. is 'b' i.e. Renal T.B.