What Was a Key Point Demonstrated by Photographs in the Textbook

What was a key point demonstrated by photographs in the textbook from before and after hurricanes?

A) Neighborhoods were flooded,but the houses and shorelines were unchanged.
B) Most houses were buried beneath sand brought in by strong waves.
C) Waves and storm surge caused erosion of beaches and destruction of houses.
D) Most houses were protected by the beach sediment.