Answer: d. transpiration
Step-by-step explanation:
Ground water is a water reservoir that accumulates underground typically beneath the earth crust in the geosphere. The water comes from different sources such as rainwater, lakes, ponds and rivers. The water from such sources get seep inside the soil or rocks through tiny pores forming an underwater reservoir.
According to the given situation, transpiration is the correct option this is because of the fact that the excess water lost through transpiration from plants enters into the atmosphere in the form of water vapors. The condensation of water vapors likely to cause rainfall whose water will become the source of groundwater.