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: Anaesthesia
[{'content': 'Buoivacaine toxicity treated with: \nSelect and explain. \nA. Esmolol, B. Epinephrine, C. Lignociaine, D. 5 percent dextrose', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Epinephrine', 'role': 'assistant'}]