Muscle Relaxants That Supposedly Inhibit Polysynaptic Reflexes in the Spinal

Muscle relaxants that supposedly inhibit polysynaptic reflexes in the spinal cord (polysynaptic inhibitors) may actually work by producing:

A) decreased acetylcholine release at the neuromuscular junction.
B) decreased calcium release from the sarcoplasmic reticulum.
C) generalized sedation in the central nervous system.
D) inhibition of myosin ATPase activity.
E) increased vasodilation of skeletal muscle vasculature.