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': "Donepezil is used in treatment of: \nSelect and explain. \nA. Alzheimer's dementia, B. Schzophrenia, C. Anxiety disorder, D. Anxiety disorder", 'role': 'user'}, {'content': "Answer: A \nExplanation: A i.e. Alzheimer's disease", 'role': 'assistant'}]