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': 'A patient who had a history of hepatitis one month ago should preferably given which local anaesthetic agent \nSelect and explain. \nA. Lignocaine, B. Bupivacaine, C. Procaine, D. Procainamide', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]