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': 'Potts shunt is – \nSelect and explain. \nA. Right subclavian artery to rt pulmonary artery, B. Descending aorta to left pulmonary artery, C. Left subclavian to left pulmonary artery, D. Ascending aorta to right pulmonary artery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]