This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New born infants, Subject name: Pediatrics
The percentage of fetal haemoglobin at bih is 
Select and explain. 
A. 20%, B. 50%, C. 70%, D. 90%
C: 70%
Answer: C: 70% 
Explanation: At bih, fetal hemoglobin comprises 50-95% of the infant&;s hemoglobin Reference: GHAI Essential pediatrics, 8th edition