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
[{'content': 'Ductus dependent blood flow is required for all of these congenital heart diseases except – \nSelect and explain. \nA. Persistent truncus arteriosus, B. Hypoplastic left heart syndrome, C. Pulmonary stenosis, D. TGA with intact ventricular septum', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]