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
Laudanosine is the metabolite of: 
Select and explain. 
A. Suxamethonium, B. Pancuronium, C. Atracurium, D. Vecuronium
C: Atracurium
Answer: C: Atracurium 
Explanation: Atracurium