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': 'Urine formation in intra uterine life stas at \nSelect and explain. \nA. 3 months, B. 4 months, C. 5 months, D. 6 months', 'role': 'user'}, {'content': 'Answer: A \nExplanation: 3 months', 'role': 'assistant'}]