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. Schizophrenia, C. Anxiety disorder, D. Depression", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]