I think it would be choice B
They began to form by a combination of volcanic activity and the deposit of marine sediments. It formed along northwest Africa about 530 million years ago. ... As the Appalachian Mountains eroded, sand and clay were deposited over Florida's limestone layer.
I might be wrong but I think the answer is
Continental deflection
Here you go this poem was in the finals for this topic
Answer:
barchan
Explanation:
sand dunes make the wind erosion