Final answer:
Coastlines are the land areas most susceptible to flooding during severe storms.
Step-by-step explanation:
The land areas that are most susceptible to flooding during severe storms are coastlines. This is because coastlines are often characterized by low-lying areas and proximity to bodies of water, such as oceans, which are influenced by tides and storm surges. When severe storms strike, the combination of intense rainfall and high tides can lead to coastal flooding.
Learn more about Flood susceptibility in land areas