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: Medicine
Infective endocarditis is commonly seen in all except 
Select and explain. 
A. Small VSD, B. Tetralogy of fallot, C. PDA, D. ASD
D: ASD
Answer: D: ASD 
Explanation: Answer is D (ASD) Endocarditis is unusual in sites with a small pressure gradient as in ASD ASD is low risk lesion for the development of infective endocarditis and the single best answer amongst the options provided