The correct option is
D Diacetyl morphine hydrochloride
Diacetyl morphine hydrochloride is another name of Heroin. It is derived from acetylation of morphine, a natural opiate. Opiates are depressants of CNS and derived from opium, the dried latex of poppy plant, Papaver somniferum. Heroin is a semisynthetic opiate. It is also known as H-smack or brown sugar. It is a white and odourless crystalline compound which is three times more potent than morphine. It can cause epilepsy and sterility.
So, the correct answer is 'Diacetyl morphine hydrochloride'.