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: Pharmacology
[{'content': 'A drug having narrow therapeutic range is \nSelect and explain. \nA. Lithium, B. Sertraline, C. Reboxetine, D. Dothiepin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Therapeutic range is bounded by the dose which\xa0produces a minimal therapeutic effect and the dose\xa0which produces a maximal acceptable adverse\xa0effect.\nExample of the narrow therapeutic range are lithium, Phenytoin.', 'role': 'assistant'}]