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': 'Which one of the following does not produce cyanosis in the first year of life - \nSelect and explain. \nA. Atrial septal defect, B. Hypoplastic left hea syndrome, C. Truncus aeriosus, D. Double outlet right ventricle', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Atrial septal defect", 'role': 'assistant'}]