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
Which of the following cardiac lesion is least likely to occur in Congenital Rubella syndrome? 
Select and explain. 
A. ASD, B. VSD, C. PDA, D. Pulmonary Stenosis
A: ASD
Answer: A: ASD 
Explanation: Most common cause of cardiac lesion in congenital Rubella syndrome is PDA > Pulmonary stenosis > VSD > ASD.