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': 'Amide type of local anesthetic agents undergo bio transformation primarily in the \nSelect and explain. \nA. Kidney, B. Liver, C. Plasma, D. Excreted in unaltered form', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]