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
Following delivery, uterus becomes a pelvic organ after : 
Select and explain. 
A. 2 weeks, B. 4 weeks, C. 6 weeks, D. 8 weeks
A: 2 weeks
Answer: A: 2 weeks 
Explanation: 2 weeks