Answer: D
Step-by-step explanation:
A canyon is a deep gorge in rock that may have a river flowing through it. The processes of weathering, erosion, and plate tectonics create canyons. Canyon areas may also contain monuments, buttes, and arches.
A dune is a mound or ridge of sand most often found on a coastline or in the desert. Dunes are created from sediments carried by wind erosion and deposited in coastal and desert regions.