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': "'Figure of 8' appearance is seen in: \nSelect and explain. \nA. TAPVC, B. Paial TAPVC, C. Abnormal origin of aoa, D. Tetralogy of fallot", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. TAPVC', 'role': 'assistant'}]