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: Surgery
[{'content': 'Toxic effect of local anaesthetic include: \nSelect and explain. \nA. Convulsions, B. Asystole, C. Methemoglobinemia, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]