This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anaesthesia
Longest acting among muscle relaxant is 
Select and explain. 
A. Doxacurium, B. Rocuronium, C. Vecuronium, D. Atracurium
A: Doxacurium
Answer: A: Doxacurium 
Explanation: Among the given options, only doxacurium is long acting(Refer: stoelting's pharmacology and physiology in anaesthetic practice ,5th edition ,pg no.139)