Which item is a depressant?

• A. Cocaine
• B. Methamphetamine
• C. Marijuana
• D. Alcohol

Answer: (D)

Depressants slow the central nervous system, reducing brain activity and producing effects like slowed thinking, impaired coordination, and dulled judgment. Alcohol clearly fits this description: it dulls perception, slows reaction times, impairs coordination, and relaxes inhibitions, all of which are hallmark depressant effects.

Cocaine and methamphetamine are stimulants—they rapidly increase CNS activity, boosting energy, alertness, heart rate, and respiration, which is the opposite of what a depressant does. Marijuana has a more complex profile; it can produce depressant, stimulant, and mild psychedelic effects depending on dose and user, but alcohol is the classic, straightforward depressant commonly associated with slowing bodily and mental processes.