Answer: Groundwater exists only in regions that get a lot of rain.
Groundwater is the reservoir of water this water accumulates in the ground surface or subsurface of the earth crust through tiny pores and fractures in the rocks. The source of water are streams of rivers, oceans, lakes and large depositing is because of water from the rain and melting of the snow. It is a source of freshwater in nature.
According to the above description, Groundwater exists only in regions that get a lot of rain can be considered as correct option.