The correct option is C A → ii, B → i, C → iv, D → iii
Opioids drugs bind to specific opioid receptors present in our central nervous system and gastrointestinal tract.
Cannabinoids are a group of chemicals effects on cardiovascular system of the body.
Cocaine interferes with the transport of the neuro-transmitter dopamine.
Nicotine stimulates adrenal gland to release adrenaline and nor-adrenaline into blood circulation which raise blood pressure and increase heart rate.