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: Pharmacology
[{'content': 'Succinylcholine is a/an \nSelect and explain. \nA. Intravenous anaesthetic agent, B. Non-depolarizing muscle relaxant, C. Short - acting narcotic, D. None of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]