Construction of a Seawall Produces an Effect Analogous to What

Multiple Choice

Construction of a seawall produces an effect analogous to what kind of natural coastal feature?

A) a sea cliff producing erosion at the base of the sea cliff i.e., the seawall.
B) an island offshore breaking waves and trapping sand behind to form a tombolo
C) a spit, formed by sand moving by longshore drift accumulating along the opening of a tidal channel
D) a barrier island, which forms an artificial beach at the front of the seawall