This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia, Subject name: Pharmacology
[{'content': 'Ananesthetic agent which is explosive in the presence of cautery \nSelect and explain. \nA. Nitrous oxide, B. Ether, C. Trilene, D. Halothane', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Refer Goodman Gilman 11/e p341 KDT 6/e p 371 Ether is an explosive agent Is should not be used with cautery', 'role': 'assistant'}]