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: Medicine
[{'content': "Which one of the following is not a prion associated disease : \nSelect and explain. \nA. Scrapie, B. Kuru, C. Creutzfeldt-Jakob disease, D. Alzheimer's disease", 'role': 'user'}, {'content': "Answer: D \nExplanation: Answer is D (Alzheimer's disease): Alzheimer's disease is the most common cause of dementia in the Western World. It is not classified as a Prion disease.", 'role': 'assistant'}]