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
Ductus dependent blood flow is required for all of these congenital hea diseases except ? 
Select and explain. 
A. Persistent truncus aeriosus, B. Hypoplastic left hea syndrome, C. Pulmonary stenosis, D. TGA with intact ventricular septum
A: Persistent truncus aeriosus
Answer: A: Persistent truncus aeriosus 
Explanation: Ans is 'a' i.e., Persistent truncus aeriosus