(C) Short-day plants generally require a light period of less than $12$ hours (i.e.,$8-10$ hours) and a continuous dark period of about $14-16$ hours

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(C) Short-day plants generally require a light period of less than $12$ hours (i.e.,$8-10$ hours) and a continuous dark period of about $14-16$ hours for subsequent flowering.Most winter-flowering plants belong to this category,such as Chrysanthemum,Xanthium (cocklebur),Dahlia,rice,sugarcane,potato,tobacco,and soybean $(Glycine \; max)$.