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
Which of the following muscle relaxant undergo Hoffman's degradation? 
Select and explain. 
A. Atracurium, B. Succinylcholine, C. Gallamine, D. Pancuronium
A: Atracurium
Answer: A: Atracurium 
Explanation: Atracurium is an intermediate acting nondepolarizing neuromuscular blocker which is inactivated in the plasma by spontaneous nonenzymatic degradation (Hoffman's elimination) in addition to that by cholinesterase.