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': 'Increased requirement of curare – \nSelect and explain. \nA. Ketamine, B. Althesin, C. Nitrous oxide, D. Histotoxic hypoxia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ketamine increases muscle tone → dose of muscle relaxant may require an increment.', 'role': 'assistant'}]