This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Physiology
Feilization takes place in which pa of fallopian tube 
Select and explain. 
A. Interstitial pa, B. Ampulla, C. Isthmus, D. Fimbria
B: Ampulla
Answer: B: Ampulla 
Explanation: The capacitated spermatozoon and the oocyte meet and interact in the ampulla of the fallopian tube.Ref: Ganong&;s review of medical physiology; 24th edition; page no: 413