Groundwater is defined as water that is stored underground in soil and rock layers. It accumulates in aquifers, which are permeable rock formations that can hold and transmit water. Groundwater originates from precipitation that infiltrates the ground and fills the spaces between soil particles and within rock formations. It is an important source of water for drinking, irrigation, and various industrial processes.
So, the correct statement from your options is: Water stored underground in soil and rock layers.