This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
Which of the following is an ultrashort acting muscle relaxant ? 
Select and explain. 
A. Rocuronium, B. Atracurium, C. Succinyl choline, D. Doxacurium
C: Succinyl choline
Answer: C: Succinyl choline 
Explanation: Ans- C Fastest acting MR Scoline Fastest acting NDMR Rocuronium Shortest acting MR Gantacurium or scoline Shortest acting NDMR Gantacurium or mivacurium Longest acting MR Doxacurium