The correct option is
C Morphine and heroine
Morphine and Heroin are opiates. Opiates are considered as king of narcotics. They are depressants of CNS and have sleep inducing effects. Opiates are derived from opium, the dried latex of unripen capsular fruits of Papaver somniferum (commonly known as poppy plant).
Morphine is a natural opiate. It is a strong sedative and analgesic i.e. pain killer. It is given to patients who have undergone surgery to relieve pain.
Heroin is a semisynthetic opiate formed from acetylation of morphine (a natural opiate). It is three times more potent than morphine.
So, the correct answer is 'Morphine and heroine'.