This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiac and Pericardiac Imaging, Subject name: Radiology
Egg on side appearance of heart is seen in the radiograph of? 
Select and explain. 
A. TAPVC, B. TGA, C. ASD, D. VSD
B: TGA
Answer: B: TGA 
Explanation: Ans. (b) TGARef: Sutton 7thed different pages. Pediatrics Radiology: The Requisites by Johan G. Blickman, Bruce R. Parker; M.D. Patrick D. Barnes p-52