The correct option is
C Heroin
Heroin is a semisynthetic opiate formed from acetylation of morphine (a natural opiate). Opiates are derived from opium, the dried latex of unripen capsular fruits of Papaver somniferum (commonly known as poppy plant). Heroin is also known as H-smack or Brown sugar. It is a white and odourless crystalline compound having a bitter taste. It is three times more potent than morphine. It is a narcotic because it can change mood, behaviour, relieve pain and induce sleep.
So, the correct answer is 'Heroin'.