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: Medicine
All can cause recurrent pulmonary infection cxcept- 
Select and explain. 
A. VSD, B. Recurrent>LW, C. TOF, D. ASD
C: TOF
Answer: C: TOF 
Explanation: Tetralogy of Fallot (TOF) is a cardiac anomaly that refers to a combination of four related hea defects that commonly occur together. The four defects are: Ventricular septal defect (VSD).it donor cause reccurent pulmonary Infections Ref Davidson 23rd edition pg 433