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: Unknown
Cardiac output is its peak at- 
Select and explain. 
A. 30-34 weeks, B. 40 weeks, C. 36-38 weeks, D. 28-32 weeks
D: 28-32 weeks
Answer: D: 28-32 weeks 
Explanation: Ans- D 28-32 weeks Timeline in descending order of maximum Cardiac output Immediate post partum > 2nd stage labor > 1st stage labor > 28-32 wks