This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
[{'content': 'Which of the following is an anxiolytic drug? \nSelect and explain. \nA. Lithium, B. Oxazepam, C. Desipramine, D. Chlorpromazine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Oxazepam is a benzodiazepine-anxiolytic. lithium is a mood stabiliser. Ref: Goodman Gillman 12th ed. Pg: 465', 'role': 'assistant'}]