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: Pediatrics
[{'content': "Intracavitary electrocardiography is a diagnostic aid in- \nSelect and explain. \nA. Tricuspid regurgitation, B. Endocardial fibroelastosis, C. Endomyocardial fibrosis, D. Ebstein's anomaly of the tricuspid valve", 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Ebstein's anomaly of tricuspid valve Four chambered view in two dimension echocardiogram is diagnostic as it outlines the displaced tricuspid valve.", 'role': 'assistant'}]