Which bacterial toxin acts by cleaving SNARE proteins, thereby inhibiting acetylcholine release at the neuromuscular junction, leading to flaccid paralysis?

✓ Correct Answer: Option D

Botulinum toxin (from Clostridium botulinum) inhibits acetylcholine release at the neuromuscular junction by cleaving SNARE proteins, causing flaccid paralysis. Tetanospasmin also cleaves SNAREs but inhibits inhibitory neurotransmitters, causing spastic paralysis.