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: Microbiology
[{'content': 'Tetanus affects trimarily - \nSelect and explain. \nA. Presynaptic terminal of spinal cord, B. Post synaptic terminal of spinal cord, C. Neuromuscular junction, D. Muscle fibres', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Presynaptic terminal of spinal cord", 'role': 'assistant'}]