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
Stephen fowler surgery is done for 
Select and explain. 
A. Undescended testis, B. Ectopic testis, C. Retractile testis, D. Testicular torsion
A: Undescended testis
Answer: A: Undescended testis 
Explanation: Stephen fowler surgery is two stage surgery for undescended testis.