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 foetal death spontaneous labour will begin within two weeks in : \nSelect and explain. \nA. 25% of patients, B. 35% of patients, C. 50% of patients, D. 75% of patients', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 75% of patients', 'role': 'assistant'}]