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': 'Lochia is seen for : \nSelect and explain. \nA. 1-4 days, B. 5-10 days, C. 10-14 days, D. 14-21 days', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 14-21 days', 'role': 'assistant'}]