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
Which of the following procedure is associated with maximum chance of recanalization during surgery for reversal of tubal ligation: 
Select and explain. 
A. Isthumo-isthmic anastomosis, B. Isthumo-ampullary anastomosis, C. Ampullo-ampullary anastomosis, D. Cornual obstruction
A: Isthumo-isthmic anastomosis
Answer: A: Isthumo-isthmic anastomosis 
Explanation: Read the following lines
“It is important to select the site of tubal ligation carefully which should ideally be done at the tubal isthmus. This is because in the event of the patient desiring a tubal recanalization procedure, the isthmo-isthmic anastomosis carries the best chances of success”.