Field Capacity Is The

Field capacity is the:

A) total amount of water present in a one-hectare field after a soaking rain.
B) percentage of water that a soil can hold against the action of gravity.
C) percentage of water remaining in a soil when plants undergo irreversible wilting.
D) total amount of fertilizer required for maximal plant growth in a one-hectare field.
E) total amount of mineral nutrients present in a one-hectare field after a soaking rain.