Which statement is true about foreshore as a coastal feature?

• A. The foreshore is the lower portion of a beach from mean lower-low water to mean higher high-water line
• B. The foreshore refers to the dune line inland of the beach
• C. Storm waves never extend beyond the foreshore
• D. The foreshore is above the mean high-water line at all times

Answer: (A)

The foreshore is the part of the beach that lies between the high-water line and the low-water line, the portion that is wetted by waves during the regular tidal cycle. Expressed with tidal datums, it runs from mean lower-low water up to mean higher high-water line, which captures the area that is alternately flooded and exposed by tides. That makes the statement correct because it names exactly that intertidal zone.

The other ideas don’t fit: the dune line inland is not the foreshore (that’s the backshore or dune system), storm waves can push beyond the foreshore into areas inland or seaward, and the foreshore isn’t always above mean high water—parts of it are below and exposed only at low tide.