This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: miscellaneous, Subject name: Biochemistry
Botulinum toxin produces skeletal muscle paralysis by 
Select and explain. 
A. Enhancing release of norepine phrine, B. Inhibiting release of acetylcholine, C. Direct damage to nerve endings, D. Producing hemolysis
B: Inhibiting release of acetylcholine
Answer: B: Inhibiting release of acetylcholine 
Explanation: Botulinum toxin B acts by cleaving synaptobrevin, inhibiting release of acetylcholine at the neuromuscular junction