This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
[{'content': 'Which of the following cardiac lesion is least likely to occur in Congenital Rubella syndrome? \nSelect and explain. \nA. ASD, B. VSD, C. PDA, D. Pulmonary Stenosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Most common cause of cardiac lesion in congenital Rubella syndrome is PDA > Pulmonary stenosis > VSD > ASD.', 'role': 'assistant'}]