Correct answer is (b) Oxycodone
Best explanation: Semi-synthetic opiates are created from natural opiates such as hydromorphone, oxycodone, and diacetylmorphine. These are mad by simple modification of the existing natural chemical structure of the compound making it more potent, less toxic etc. Natural opiates are alkaloid contained in the resin of the opium poppy including morphine and codeine. Fully synthetic opioids are such as fentanyl, methadone, etc.