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
The amniotic fluid is completely replaced in every: 
Select and explain. 
A. 3 hours, B. 6 hours, C. 9 hours, D. 12 hours
A: 3 hours
Answer: A: 3 hours 
Explanation: 3 hours