Which of the following behaviors would indicate stimulant intoxication?

Choice A reason: Relaxed inhibitions, increased appetite, and distorted perceptions are more characteristic of cannabis intoxication rather than stimulants. Cannabis use often leads to increased appetite ("the munchies") and perceptual distortions, but stimulants typically suppress appetite and increase alertness. Choice B reason: Depersonalization, dilated pupils, and visual hallucinations are more consistent with hallucinogen intoxication such as LSD or PCP. While stimulants can cause dilated pupils, the presence of depersonalization and hallucinations points more toward hallucinogens rather than stimulants. Choice C reason: Slurred speech, unsteady gait, and impaired concentration are typical of alcohol intoxication or sedative-hypnotic use. These substances depress the central nervous system, leading to impaired motor coordination and speech, which are not features of stimulant intoxication. Choice D reason: Hyperactivity, talkativeness, and euphoria are hallmark signs of stimulant intoxication. Stimulants such as cocaine, amphetamines, and methamphetamine increase dopamine and norepinephrine activity, leading to heightened energy, excessive talking, and feelings of intense pleasure or euphoria. These behaviors directly reflect the pharmacologic effects of stimulants on the central nervous system.