Construction of a Breakwater Produces the Same Effect as What

Multiple Choice

Construction of a breakwater produces the same effect as what kind of natural coastal structure?

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