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
Characterstic X Ray finding in ASD is: 
Select and explain. 
A. Enlarged left ventricle, B. Enlarged left atria, C. Pulmonary pletheora, D. PAH
C: Pulmonary pletheora
Answer: C: Pulmonary pletheora 
Explanation: C i.e. Pulmonary plethora