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': 'Percentage of Halothane metabolized ? \nSelect and explain. \nA. 1%, B. 5%, C. 10%, D. 20%', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., 20% Most of the inhaled anaesthetics are eliminated from lungu though some metabolism in liver may occur. In terms of extent of hepatic metabolism, the rank of order is methoxyflurane (> 50%) > Halothane (20%) > Ether (10-157o) > enflurane (3-5%) desflurane (< 0.1%) > NrO (0%). NrO does not have any metabolism in the body.", 'role': 'assistant'}]