The correct option is C Barbiturates
Heroin → Depressent fo body functions
Cannobinoids → Affects central nervous system (CNS)
Opioids → Affects CNS and gastro intestinal tract (GIT)
Cocaine / Crack / Coke → Stimulates CNS, Hallucinogenic
Atropa belladona, Datura → Hallucinogenic
Barbiturates, Amphetamines and Benzodiazepins → Antidepressent
Morphine → Pain killer
Nicotine → Increases BP and Heart Rate