This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
[{'content': 'Botulinum toxin acts by which mechanism \nSelect and explain. \nA. Transmitter uptake inhibition, B. Transmitter release inhibition, C. Transmitter synthesis inhibition, D. Transmitter breakdown inhibition', 'role': 'user'}, {'content': "Answer: B \nExplanation: Clostridium botulinum produces type A toxin. It acts by blocking the release of acetylcholine at the synapses and neuromuscular junction. Thus blocks neuromuscular transmission. Reference: Textbook of Microbiology; Anathanarayan and paniker's; 10th edition; Page no: 269", 'role': 'assistant'}]