Darian Has Decided to Get the Cosmetic Injection of Botox

Multiple Choice

Darian has decided to get the cosmetic injection of Botox to smooth wrinkles between his eyebrows. Before he goes to visit his doctor, he researches Botox on the internet and learns that it's a mild form of the botulism toxin, which paralyzes facial muscles by blocking the action of

A) Serotonin.
B) acetylcholine.
C) dopamine.
D) norepinephrine.
E) glutamate.