A stream carrying black sediment enters the ocean along a beach where most of the sand is brown. Lines and patches of black sediment from the stream can be found along the shore, even very far from the stream.

How does the black sand most likely move down the beach?
A.
Animals move the sand down the shore.
B.
People carry the sand down the shore.
C.
Waves wash the sand down the shore.
D.
Wind blows the sand down the shore.