Answer:
C. They provide natural water filtration.
Step-by-step explanation:
The functions of waterlands are assist with flood control, they recharge natural water filtration and serve as sources of drinking waters, wetlands are portions of land that are flooded seasonally and help the enviroment to filter water and are characteristic for having flora specifically adapted to the mody soil, swamps and other bodies of water can be considered wetlands and they provide a "regulator" for spring rains and melted ice waters that fall from mountains that are flowing to the rivers and lagoons.