This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Organic mental 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: In dementia, specific drug treatment such as cholinesterase inhibitors (e.g. donepezil, rivastigmine, galantamine) in moderate Alzheimer&;s disease, or memantine (NMDA antagonist) in moderate to severe Alzheimer's disease, can be helpful. Ref: A Sho Textbook of Psychiatry, Niraj Ahuja, 7th Edition, pg. no. 26", 'role': 'assistant'}]