The family with the correctly matched plant is “Malvaceae – Cotton”. The cotton (Gossypium herbaceum) is a herbecious, perrinial flowering plant belonging to the family malvaceae.
Mango (Mangifera indica) is a flowering plant belonging to the family Anacardiaceae and not Leguminosae. Orange (Citrus aurantium) is a flowering plant belonging to the family Rutaceae and not Cucurbitaceae. Wheat (Triticum aestivum) is a flowering plant belonging to the family Poaceae and not Brassicaceae.