All of the following drugs could be classified as stimulants EXCEPT:

A) marijuana.
B) caffeine.
C) nicotine.
D) cocaine.

Stimulants

Psychoactive drugs such as cocaine, amphetamines, nicotine, and caffeine that tend to elevate mood, arouse action, reduce feelings of fatigue, and decrease appetite.

Marijuana

A drug derived from the resin of the cannabis sativa plant. The effects of marijuana abuse include memory impairment, altered thought process, feelings of relaxation and euphoria, impaired coordination, and increased appetite.