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
[{'content': 'Botulinum toxin produces skeletal muscle paralysis by \nSelect and explain. \nA. Enhancing release of norepine phrine, B. Inhibiting release of acetylcholine, C. Direct damage to nerve endings, D. Producing hemolysis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Botulinum toxin B acts by cleaving synaptobrevin, inhibiting release of acetylcholine at the neuromuscular junction', 'role': 'assistant'}]