Toxins Produced by Clostridium Botulinum (Botulism Toxin)block the Release of Acetylcholine

Toxins produced by Clostridium botulinum (botulism toxin) block the release of acetylcholine from neurons.These toxins work by

A) inhibiting synthesis of acetylcholine.
B) triggering increased synthesis of acetylcholine.
C) triggering increased exocytosis of vesicles containing acetylcholine.
D) inhibiting exocytosis of vesicles containing acetylcholine.
E) blocking diffusion of acetylcholine out through channel proteins.