Answer:
(D) Increase the potential for flooding.
This does not apply to freshwater wetlands
Explanation:
Wetlands are neither totally dry land nor totally underwater. The water in groundwater which comes from a source like spring. These are common in tropical areas near the equator. Wetlands consist of water-tolerant plants which are key to maintaining the wetland ecosystem. They are famous for water purification.
That's why in some places artificial wetlands are developed solely for the purpose of water purification. They also help to prevent flooding by holding water similarly like a sponge. As it helps in preventing the flooding so the option saying that it increases the potential for flooding is the answer.