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
Which of the following drugs undergoes "Hoffmann elimination"? 
Select and explain. 
A. d-tubercurarine, B. Acetylcholine, C. Atracurium, D. Acetazolamide
C: Atracurium
Answer: C: Atracurium 
Explanation: None