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
Lutembacher's syndrome comprises of ? 
Select and explain. 
A. Ventricular septal defect with aoic stenosis, B. Ruptured sinus of valsalva aneurysm, C. Atrial septal defect with mitral stenosis, D. Complete common atrioventricular canal
C: Atrial septal defect with mitral stenosis
Answer: C: Atrial septal defect with mitral stenosis 
Explanation: Ans. is 'c' i.e., Atrial septal defect with mitral stenosis