The correct option is
D All of the above
Cocos nucifera, the coconut palm, is a monocot perennial member of the
Arecaceae (palm family), cultivated in tropical areas worldwide for its fruit and fibre.
Gossypium is the cotton genus. It belongs to the tribe Gossypieae, in the mallow family, Malvaceae, native to the tropical and subtropical regions from both the old and new world.
Linum usitatissimum, is a member of the genus Linum in the family Linaceae. It is a food and fibre crop that is grown in cooler regions of the world. The textiles made from flax are known in the West as linen, and traditionally used for bed sheets, underclothes and table linen. The oil is known as linseed oil.
Thus, the correct answer is option D.