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': 'Cholinesterase metabolizes following except – \nSelect and explain. \nA. Tetracaine, B. Procaine, C. Acetylcholine, D. Bupivacaine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ester local anesthetics (like procaine & tetracaine) are metabolized by cholinesterase (pseudocholinesterase). Amide local anesthetics (Bupivacaine) are metabolized in liver (not by pseudocholinesterase).\nAcetylcholine is metabolized by cholinesterase (acetylcholinesterase).', 'role': 'assistant'}]