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': "Most commonly associated disorder with Down's syndrome among the following is \nSelect and explain. \nA. Hirschsprung disease, B. CML, C. Late onset Alzheimer's disease, D. Early onset Alzheimer's disease", 'role': 'user'}, {'content': "Answer: D \nExplanation: Among the following options, Early onset Alzheimer's disease is most appropriate.\n\nAML & ALL have equal incidence\nDuodenal atresia is most Common GI disorder associated with Down's syndrome.\nEarly onset Alzheimer's disease (Pre-senile Alzheimer's in associated with Down's syndrome.", 'role': 'assistant'}]