A. The coast line attacked by the waves
B. The swell of the sea breaking on the shore or reefs
C. The fathom line of 10 m depth
D. The fathom line of 5 m depth

A. a structure built out over water in a port along which ships can land to load and unload
B. he substructure of a building or infrastructure that transfers the structure’s loads to the soil below
C. Both a and b
D. None of them