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': "CML in children is associated with - \nSelect and explain. \nA. Down's syndrome, B. Klinefelter syndrome, C. Marran's syndrome, D. Turner's syndrome", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Down syndrome o Patients with Down syndrome are more prone to develop juvenile type of CML.", 'role': 'assistant'}]