Question

classification: drugs that decrease the activity of the central nervous system.
○ a stimulant
○ b designer/synthetic drug
○ c hallucinogen
○ d depressant

Explanation:

Depressants are defined as drugs that reduce the activity of the central nervous system. Stimulants increase CNS activity, hallucinogens alter perception, and designer/synthetic drugs refer to a production category, not a CNS effect category.

Answer:

d. Depressant