This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': "All the following are cyanotic hea disease except \nSelect and explain. \nA. TOF, B. PDA, C. Tricuspid atresia, D. Eisenmenger's complex", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref Harrison 19 th ed pg 1523 Patent ductus aeriosus is not classified as a cyanotic congenital heayh disease. PDA is an acyanotic hea disease with left to right shunt.', 'role': 'assistant'}]