While watching the news, a student learned that annual flooding of a nearby river causes an average of $1.8 million dollars in damages each year. The student wants to create a proposal for the city council to help address the problem. The student came up with four ideas to submit. Which of the following ideas would best help reduce damages caused by river flooding each year?
1. Constructing more dams and levees along the river to prevent flooding.
2. Implementing a comprehensive floodplain management plan to limit development in high-risk areas.
3. Investing in natural solutions such as restoring wetlands and creating green spaces to absorb excess water.
4. Providing financial assistance to residents to retrofit their homes with flood-resistant materials.