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: Surgery
[{'content': 'Valvoplasty done in following except - \nSelect and explain. \nA. Coarctation of aorta, B. PS, C. MS, D. AS', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Valvoplasty is not done in coarctation of aorta. It is done in valvular diseases like PS, MS, AS etc.', 'role': 'assistant'}]