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 time taken for air to reach the descending colon in a normal infant is \nSelect and explain. \nA. 1-2 hours, B. 3-4 hours, C. 5-6 hours, D. 8-9 hours', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The time taken to reach the descending colon in an infant is 7-9 hrs approximately Reference: GHAI Essential pediatrics, 8th edition', 'role': 'assistant'}]