This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inhalational Anesthetic Agents, Subject name: Anaesthesia
[{'content': 'Which is false regarding ether? \nSelect and explain. \nA. Highly inflammable, B. Causes hyperglycemia, C. Good muscle relaxation, D. Rapid recovery', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ether anaesthesia has major demerit of slow induction and slow recovery.', 'role': 'assistant'}]