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: Gynaecology & Obstetrics
During pomeroy's method of female sterilization, which poion of tube is ligated : 
Select and explain. 
A. Isthmus, B. Ampullary, C. lsthmo-ampullary, D. Cornual
C: lsthmo-ampullary
Answer: C: lsthmo-ampullary 
Explanation: lsthmo-ampullary