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': 'In full term neonates, the ductus aeriosus closure is due to \nSelect and explain. \nA. Cardiac output, B. Prostaglandins, C. Low pressure CO2, D. High pressure O2', 'role': 'user'}, {'content': 'Answer: D \nExplanation: High pressure O2 can cause the closure of ductus aeriosus. Reference: GHAI Essential pediatrics, 8th edition', 'role': 'assistant'}]