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': "This x-ray is suggestive of \nSelect and explain. \nA. Tetralogy of fallot, B. TAPVC, C. Tricuspid atresia, D. Ebstein's anomaly", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Boot shaped heart - Tetralogy of fallot.', 'role': 'assistant'}]