Which Characteristic Is NOT True of Subsistence Paddy Rice Farming

Which characteristic is NOT true of subsistence paddy rice farming?

A) Paddy rice farming requires large amounts of water and fertilizer.
B) Paddy rice farming traditionally requires enormous amounts of human labor but yields little food per unit area of land.
C) Paddy rice farms are often only 3 acres in size but are adequate to support a family.
D) Paddy rice farmers often plant and harvest the same parcel of land twice each year.