Answer:
While coastal erosion affects all regions of the United States, erosion rates and potential impacts are highly localized. Average coastline recession rates of 25 feet per year are not uncommon on some barrier islands in the Southeast, and rates of 50 feet per year have occurred along the Great Lakes
Option c would be the most befitting one.
I think that the answer is c, ridges!
A, i think. i don't know a lot but i think a makes the most sense.
Earth's geosphere contains 99.94% of its mass. Hope this helps!