The correct option is C Mimosoideae
Touch-me-not (Mimosa pudica) is also called as a sensitive plant or sleepy plant because it folds its leaves when touched or exposed to heat. It is an annual herb. The plant is classified as :
Kingdom: Plantae, Angiosperms, Eudicots, Rosids,
Order: Fabales,
Family: Fabaceae,
Subfamily: Mimosoideae,
Genus: Mimosa
Species: pudica
Thus, the correct answer is option C.