This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pediatrics
[{'content': 'All of the following about PDA are true except \nSelect and explain. \nA. More common in males, B. Common hea lesion in rubella, C. Treatment is closure of defect by ligation and division of ductus, D. Hypoxia and immuturity are impoant in maintaining the patency', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Incidence of PDA is more in females (1:3 ratio) PDA is Most common cardiac lesion in rubellla,others are pulmonary stenosis Treatment of PDA is ligation & division especially in term babies PDA is more common among preterm babies Ref : Ghai essential of pediatrics, 8th edition, p.no:417-19', 'role': 'assistant'}]