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
'Figure of 8' appearance is seen in: 
Select and explain. 
A. TAPVC, B. Paial TAPVC, C. Abnormal origin of aoa, D. Tetralogy of fallot
A: TAPVC
Answer: A: TAPVC 
Explanation: Ans. TAPVC