This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Muscle relaxants, Subject name: Anaesthesia
Which of the following is the neuromuscular blocking agent with the shoest onset of action? 
Select and explain. 
A. Mivacurium, B. Atracurium, C. Rapacuronium, D. Succinylcholine
A: Mivacurium
Answer: A: Mivacurium 
Explanation: Shoest acting non-depolarising skeletal muscle relaxant is Mivacurium Shoest acting depolarising muscle relaxant is Succinylcholine(Suxamethonium) .