This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pediatrics
[{'content': 'Lutembacher syndrome includes all the following except \nSelect and explain. \nA. Mitral stenosis, B. ASD, C. VSD, D. Left to right shunt', 'role': 'user'}, {'content': "Answer: C \nExplanation: Lutembacher syndrome is defined as a combination of mitral stenosis and a left-to-right shunt at the atrial levelTypically, the left-to-right shunt is an atrial septal defect (ASD) of the ostium secundum varietyBoth these defects, ASD, and mitral stenosis can be either congenital or acquired.(Refer: OP Ghai's Textbook of Pediatrics, 8th edition, pg no. 401)", 'role': 'assistant'}]