This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Puerperium, Subject name: Gynaecology & Obstetrics
[{'content': 'Following delivery, Uterus becomes a pelvic organ after_____ \nSelect and explain. \nA. 24 hours, B. First week, C. Second week, D. Third week', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Size of uterus - 1. immediately after delivery- just below the umblicius 2. Uterus become pelvic organ in 10-14 days 3. Uterus comes to normal size in 4-6 weeks', 'role': 'assistant'}]