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': 'Drug of choice in depression in old person is - \nSelect and explain. \nA. Fluoxetine, B. Buspirone, C. Amitryptyline, D. Imipramine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Selective serotonin reuptake inhibitor (SSRIs) like fluoxetine have very little anticholinergic side effects and hence, are generally safer drugs to use in elderly patients with cardiac disease or BPH.', 'role': 'assistant'}]