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
Tetanus affects primarlly - 
Select and explain. 
A. Presynaptic terminal of spinal cord, B. Post synaptic terminal of spinal cord, C. Neuromuscular junction, D. Muscle fibres
A: Presynaptic terminal of spinal cord
Answer: A: Presynaptic terminal of spinal cord 
Explanation: None