This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Obstetrical Anatomy, Subject name: Gynaecology & Obstetrics
Fertilization most commonly occurs at: 
Select and explain. 
A. Ampulla, B. Interstitium, C. Isthmus, D. Uterine cavity
A: Ampulla
Answer: A: Ampulla 
Explanation: Ans. A. Ampulla* Fertilization is the process of fusion of the spermatozoon with the mature ovum.* Almost always, fertilization occurs in the ampullary part of the uterine tube.