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: Pediatrics
A child after 4 weeks of birth acyanotic, ejection systolic murmur detected causes are/is – 
Select and explain. 
A. V.S.D., B. P.D.A., C. Coarctation of aorta, D. All of these
D: All of these
Answer: D: All of these 
Explanation: None