How Does Water Get from the Atmosphere into the Groundwater

How does water get from the atmosphere into the groundwater system?

A) Precipitation falls into rivers and then flows downriver into the groundwater system.
B) Precipitation falls on the ground and infiltrates the ground surface to the groundwater system.
C) Water from the ocean is sucked up into the groundwater system because of a pressure difference.
D) Plants secrete water into the groundwater system in a process called evapotranspiration.