This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pediatrics
[{'content': 'Hilar dance on fluoroscopy is seen in \nSelect and explain. \nA. ASD, B. VSD, C. PS, D. TR', 'role': 'user'}, {'content': 'Answer: A \nExplanation: . Ghai essential of pediatrics, eighth edition p.no:413 hilar dance on fluoroscopy due to vigorous pulmonary aery pulsations seen in ASD', 'role': 'assistant'}]