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': 'Contraceptive advice in lactating mother \nSelect and explain. \nA. Combined pill, B. Mini pill, C. Barrier method, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: All', 'role': 'assistant'}]