This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardio thoracic surgery  , Subject name: Anatomy
Valvoplasty is done in following except 
Select and explain. 
A. PS, B. MS, C. AS, D. Coarctation of aoa
D: Coarctation of aoa
Answer: D: Coarctation of aoa 
Explanation: A valvuloplasty, also known as balloon valvuloplasty or balloon valvotomy, is a procedure to repair a hea valve that has a narrowed opening. In this valve condition, the valve flaps (leaflets) may become thick or stiff, and they may fuse together (stenosis). This causes the valve opening to be narrowed and results in reduced blood flow through the valve. A valvuloplasty may improve blood flow through the valve and improve your symptoms Refer above image for indications Ref: Internet