The correct labels for the layers within the Earth related to groundwater are:
C. A. zone of aeration - B. water table - C. zone of saturation.
In this context:
- The zone of aeration is the upper layer where the soil and rock are not saturated with water.
- The water table is the boundary between the zone of aeration and the zone of saturation.
- The zone of saturation is the layer where all the pore spaces are filled with water.