The correct option is
D a−iii,b−i,c−iiMorphine is a pain reviler which acts directly on the central nervous system. It is used for both acute and chronic pain. Codeine is a drug which is mainly used to treat a moderate or severe pain. Both are alkaloid. Alkaloids are the naturally occurring compound which has nitrogen as an important constituent. It helps in nitrogen metabolism in the plants which regulate the growth of the plant.
Carotenoids are the pigments which provide red, yellow and orange color to the fruits. It acts as an antioxidant. Anthocyanin is the water-soluble pigments which provide red, purple or blue pigments.
Vinblastine is an alkaloid which is used as a drug to cure cancer. Curcumin is a yellow color pigment which is mainly present in the turmeric and it acts as a potential drug for cancer.
So, the correct answer is option D.