This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Muscle Relaxant, Subject name: Anaesthesia
[{'content': "Atracurium is metabolized and excreted by \nSelect and explain. \nA. Kidney, B. Liver, C. Brain, D. Hoffman's elimination", 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. d (Hoffman's elimination). (Ref. Harrisons, Medicine, 18th/735)ATRACURIUM BESYLATE# Long acting and non-depolarising muscle relaxant.# Muscle relaxant of choice in renal failure or anephric patients.# pH of solution is 3.5.# Stored at 4degC.# Duration of action doubled at 25degC.# Metabolism mainly by Hofmann elimination (a chemical degradation) and hydrolysis in plasma and elsewhere in body.# Major metabolite is laudanosine, which is CNS- stimulant.", 'role': 'assistant'}]