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
[{'content': "Following operations are used for genital prolapse except : \nSelect and explain. \nA. Fothergill's, B. Fenton's, C. Ward Mayo, D. Le Foe", 'role': 'user'}, {'content': "Answer: B \nExplanation: Fenton's", 'role': 'assistant'}]