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: Anaesthesia
In a young patient who had extensive soft tissue and muscle injury, which of these muscle relaxants used for endotracheal intubation might lead to cardiac arrest : 
Select and explain. 
A. Atracurium, B. Suxamethonium., C. Vecuronium, D. Pancuronium
B: Suxamethonium.
Answer: B: Suxamethonium. 
Explanation: B i.e. Suxamethonium