This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Schizophrenia Spectrum and Other Psychotic Disorders, Subject name: Psychiatry
[{'content': 'Rivastigmine and donepezil are drugs used predominantly in the management of: \nSelect and explain. \nA. Depression, B. Dissociation, C. Delusion, D. Dementia', 'role': 'user'}, {'content': "Answer: D \nExplanation: Acetylcholinesterase inhibitors (donepezil, galantamine, rivastigmine) increase the concentration of and duration of action of acetylcholine in the central nervous system. There is evidence that in moderately severe Alzheimer's disease, these drugs improve cognitive function and behavior for up to a year.", 'role': 'assistant'}]