Located near Africa’s coasts and rifts, __________ are steep slopes and cliffsides that are caused by erosion.

Escarpments are steep slopes or cliffs that form when erosion wears away rock and leaves a sharp change in elevation. They are found in parts of Africa near the coasts and rifts. Therefore, the best answer is D, escarpments; basins are low-lying areas, aquifers hold groundwater, and steppes are grasslands.

AI-written and checked against the verified answer.