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
Fastest acting non depolarizing neuromuscular blocker:- 
Select and explain. 
A. Succinylcholine, B. Rapacuronium, C. Rocuronium, D. Mivacurium
B: Rapacuronium
Answer: B: Rapacuronium 
Explanation: 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.