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': 'Contraindications of circlage operation are all except: \nSelect and explain. \nA. Leaking membranes, B. Features of amnionitis, C. History of vaginal bleeding, D. Pregnancy beyond 14 weeks', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]