This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuromuscular Blocker, Subject name: Anaesthesia
[{'content': 'Fastest acting non depolarizing neuromuscular blocker:- \nSelect and explain. \nA. Succinylcholine, B. Rapacuronium, C. Rocuronium, D. Mivacurium', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Fastest acting neuromuscular blocker is succinylcholine Fastest nondepolarising neuromuscular blocker is rapacuronium but rapacuronium is clinically not in use. 2 nd fastest nondepolarising neuromuscular blocker is rocuronium. Mivacurium : shoest but not fastest.', 'role': 'assistant'}]