A north south oriented shoreline has land to the east and the major storm waves arrive from the southwest. A headland abuts westward along the shoreline and exposes a distinctive black basalt that is rapidly eroded by waves pounding the coast. Where would you expect to find black sand derived from this headland?

A) immediately offshore of the headland
B) on the beach to the south of the headland
C) on the beach to the north of the headland
D) only in pocket beaches along the headland