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': 'Puerperium lasts for: March 2013 \nSelect and explain. \nA. 4 weeks, B. 5 weeks, C. 6 weeks, D. 7 weeks', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C i.e. 6 weeks Puerperium Puerperium lasts for: 6 weeks after delivery Uterus becomes a pelvic organ after: 2 weeks of delivery Involution of uterus is complete by: 6 weeks MC cause of puerperial infection: Streptococcus MC route of spread of puerperial infection: Direct spread', 'role': 'assistant'}]