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: Radiology
[{'content': "Inferior rib notching is seen in all except: \nSelect and explain. \nA. Blalock taussig shunt operation, B. Aoic interruption, C. Waterson Cooley's shunt, D. Pulmonary stenosis with VSD", 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. Waterson Cooley's shunt", 'role': 'assistant'}]