This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pediatrics
ASD with murmur similar to MR and left axis detion ? 
Select and explain. 
A. ASD secondum, B. ASD primum, C. Floppy mitral valve, D. ASD secondum with rheumatic MR
B: ASD primum
Answer: B: ASD primum 
Explanation: ASD primum lead to left axis detion. Ghai essential of pediatrics, eighth edition, p.no:413