Final answer:
Psychoactive drugs affect brain function, altering mood, thought, perception, and behavior, and they can be legal or illegal. While they include stimulants and depressants, the correct answer to the question is that they are classified as C) Psychoactive.
Step-by-step explanation:
Psychoactive drugs are substances that change the function of the brain and result in alterations of mood, thinking, perception, and behavior. These drugs can have various pharmacological effects and are classified into categories such as stimulants, depressants, anxiolytics, euphoriants, hallucinogens, and empathogens. Although some psychoactive drugs can be used for therapeutic purposes, misuse can lead to addiction and physical or psychological dependence.
It is important to note that these substances may be either legal or illegal. Legal substances include prescription medications like opioid painkillers as well as legal nonprescription drugs such as alcohol and nicotine. Illegal drugs include substances such as LSD and heroin.