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
Which of these acyanotic congenital heart diseases is associated with volume overload? 
Select and explain. 
A. Ventricular septal defect, B. Coarctation of aorta, C. Aortic stenosis, D. None of these
A: Ventricular septal defect
Answer: A: Ventricular septal defect 
Explanation: Ans. A. Ventricular septal defectsVentricular septal defects (VSD), atrial septal defects and patent ductus arteriosus are acyanotic congenital heart diseases associated with volume overload; aortic stenosis and coarctation of aorta are also acyanotic congenital heart diseases which present as obstructive lesions (pressure overload).