The correct option is
D All of the above
Opium is dried latex of unripen capsular fruits of Papaver somniferum (poppy plant). Many drugs are derived from opium such as morphine, codeine and heroin. Morphine and codeine are natural opiates. Morphine is a strong sedative and analgesic (painkiller). Codeine is mild analgesic. Heroin (diacetylmorphine) is a synthetic opiate. It is white and odourless crystalline compound which is more potent than morphine. It is formed by acetylation of morphine.
So, the correct answer is 'All of the above'.