Final answer:
Hallucinogens are the only drug class listed that do not cause the same extent of tolerance, dependence, and addiction as other drug classes like stimulants and opioids.
Step-by-step explanation:
Psychoactive drugs are divided into different classes according to their pharmacological effects. Some examples include stimulants, opioids, hallucinogens, and depressants. However, not all drug classes cause tolerance, dependence, and addiction to the same extent. In this case, the correct answer is c. Hallucinogens. While hallucinogens can cause profound alterations in sensory and perceptual experiences, they are generally less likely to lead to tolerance, dependence, and addiction compared to other drug classes like stimulants and opioids.