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
[{'content': 'The percentage of fetal haemoglobin at bih is \nSelect and explain. \nA. 20%, B. 50%, C. 70%, D. 90%', 'role': 'user'}, {'content': 'Answer: C \nExplanation: At bih, fetal hemoglobin comprises 50-95% of the infant&;s hemoglobin Reference: GHAI Essential pediatrics, 8th edition', 'role': 'assistant'}]