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': '"Egg on side appearance" is seen in: \nSelect and explain. \nA. Fallot\'s tetralogy, B. Transposition of great vessels, C. Ebstein\'s anomaly, D. Ventricular septal defect', 'role': 'user'}, {'content': "Answer: B \nExplanation: b. Transposition of great vessels(Ref: Nelson's 20/e p 2223-2225, Ghai 8/e p 424-426)Congenital heart diseasesImportant chest X-ray findingTransposition of great vessels'Egg on side' appearanceTetralogy of FallotBoot shaped heart or 'Coren sabot' appearanceSupracardiac TAPVC'Figure of 8' or Snowman appearanceEbstein anomalyBox shaped heart", 'role': 'assistant'}]