The correct option is (c) heroin.
Explanation:
Opium is derived from unripe seed pods of the poppy plant Papaver somniferum. Oprum has an analgesic effect and may also reduce anxiety and tension, lowers the blood pressure and breathing rate. Opium and its derivatives including morphine, codeine and heroin are among the drugs collectively known as narcotic drugs.
Narcotics induce addiction if used repeatedly and heroin is most dangerous narcotic.