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': 'CCF is most likely in pregnancy at : \nSelect and explain. \nA. 32 weeks, B. 1st stage of labour, C. 2nd stage of labour, D. 3rd stage of labour', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 3rd stage of labour', 'role': 'assistant'}]