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
Shoest acting non depolarizing muscle relaxant 
Select and explain. 
A. Mivacurium, B. Vercuromium, C. Atracurium, D. Succinyl choline
A: Mivacurium
Answer: A: Mivacurium 
Explanation: Non depolarising (competitive) 1)Long Acting - pancuronium,pipecuronium 2) Intermediate Acting-vecuronium,rocuronium,atracurium 3) Sho Acting - Mivacurium