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
"Snowman" sign is seen in: 
Select and explain. 
A. TGV, B. TOF, C. TAPVC, D. Aoic dissection
C: TAPVC
Answer: C: TAPVC 
Explanation: C i.e., TAPVC