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: Pharmacology
Suxamethonium is : 
Select and explain. 
A. Non depolarizing muscle relaxant, B. Depolarising muscle relaxant, C. Direct acting muscle relaxant, D. All of the above
B: Depolarising muscle relaxant
Answer: B: Depolarising muscle relaxant 
Explanation: None