The correct option is B Yucca
Yucca is a genus of perennial shrubs and trees in the family Asparagaceae. They are widely grown as ornamental plants in gardens. They tolerate a range of conditions, but are best grown in full sun in subtropical or mild temperate areas.
Smilax is used as a traditional medicinal plant , it is used to treat leprosy, tumors, cancer, psoriasis and rheumatism. It is also used as tonic for anemia and skin diseases. Gloriosa is a tender climber that thrives in a sunny position.
Colchicum Autumnale as a medicinal plant and homeopathic medicine. Many parts of the colchicum plant are poisonous as they contain colchicine. This includes the bulb-like corms, seed, leaves and flowers of the Autumn Crocus.
The correct answer is "Yucca"