Q: Fact 1: Asandbar is formed by water moving sediment downstream. Fact 2: Some sediment comes from natural erosion. Given the two facts above, a sandbar is formed by ?

OPT:
(A). loose soil.
(B). magma eruptions.
(C). wind currents.
(D). near the shoreline.
(E). seismic activity.
(F). natural erosion.
(G). flooding.
(H). Physical weathering.
A:
(F).