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
Radiological sign of coarctation of aorta 
Select and explain. 
A. Dock's sign, B. E - sign, C. Inverted 3 sign, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Others : 

Revesed E sign.
Figure of 3 sign.