Aquifers located below the water table, important sources of freshwater, and located in the saturated zone.
Aquifers are underground, present layers of rock or sand that bear water.
Aquifers are bodies of permeable rock or sediment that have been flooded by groundwater.
As rainwater penetrates through the earth, groundwater enters an aquifer.
It has the ability to migrate through the aquifer and reemerge via springs and wells.
Thus, the correct option is D, all of the above.
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