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': 'Which of the following has minimum MAC ? \nSelect and explain. \nA. Methoxyflurane, B. N2O, C. Halothane, D. Desflurane', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Methoxyflurane has minimum MAC and is most potent. Order of potency in decreasing order (MAC in increasing order) :-\n\nMethoxyflurone (MAC= 0.16%)> Trilene (0.2%) > Halothane (0.74%) > Chloroform (0.8%) > Isoflurane (1.15%) > Enflurane (1.68%) > Ether (1.92%) > Sevoflurane (2.0%) > Desflurane (6.0%) > Cyclopropane (9.2%) > N20 (104%).', 'role': 'assistant'}]