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: Psychiatry
[{'content': "Alzheimer's Disease is associated with : \nSelect and explain. \nA. Delerium, B. Delusion, C. Dementia, D. Depression", 'role': 'user'}, {'content': "Answer: C \nExplanation: Answer is C (Dementia): Alzheimer's Disease is the most common cause of Dementia in elderly.Clinically, AD most often presents with subtle onset of memory loss followed by slowly progressive dementia that has a course of several years.", 'role': 'assistant'}]