Answer:
The correct answer is "away from the central nervous system, cause motor effects in glands or muscles".
Step-by-step explanation:
Efferent signals are produced by efferent neurons, the cells of the nervous system that have that name because they are located away from the central nervous system. Efferent neurons receive sensory input from the brain, which are traduced into an action. The result of the efferent signals are a motor response performed by the muscles and glands.