This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pediatrics
[{'content': 'What is the mechanism of aoic regurgitation in a case of VSD? \nSelect and explain. \nA. Prolapse of right coronary leaflet, B. Changes in the pressure gradient due to left to right shunt, C. Eisenmengerization, D. Congenital defect', 'role': 'user'}, {'content': "Answer: A \nExplanation: Aoic regurgitation in VSDIt is a rare association seen in around 5% of VSDsIt is due to prolapse of the right coronary or non-coronary leaflet of the aoic valve or bothCommon when the defect is in the infundibular septum.(Refer: Nelson's Textbook of Pediatrics, SAE, 1st edition, pg no. 2194 - 2195)", 'role': 'assistant'}]