This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Internal Generative Organs, Subject name: Gynaecology & Obstetrics
[{'content': 'Most common site of fertilization is: \nSelect and explain. \nA. Cervix, B. Ampulla, C. Fimbriae, D. Uterus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: ANSWER: (B) AmpullaREF: Ganong\'s 22nd ed chapter 23Also asked in June 2011"In humans, fertilization of the ovum by the sperm usually occurs in the ampulla of the uterine tube"', 'role': 'assistant'}]