Plants take up water through their roots, and sometimes they absorb more water than they need. The excess water is then released from the plant through a process called transpiration. This option, option 4, is the correct answer.

Transpiration is the process through which water is evaporated from the leaves of the plants. It takes place through tiny openings on the surface of leaves called stomata. These stomata open to allow the exchange of gases, including water vapor. When the stomata are open, water is lost through evaporation, which helps to release the excess water absorbed by the plant. This process is essential for regulating the plant`s water balance and maintaining its overall health.