Which of the following groups of drugs tends to increase central nervous system activation and behavioral activity?

A) Narcotics.
B) Sedatives.
C) Stimulants.
D) Barbiturates.

Central Nervous System

The part of the nervous system that consists of the brain and spinal cord, controlling most functions of the body and mind.

Stimulants

Substances that increase activity in the brain and nervous system, resulting in increased alertness, attention, and energy.

Narcotics

A class of drugs that affect mood or behavior, often used medically to relieve pain, but can also lead to addiction.