Answer: A
Steep, jagged cliffs that mark the edges of a plateau.
Explanation: An escarpment is a steep slope or long cliff that forms as a result erosion, it separates two relatively level areas and usually have different elevations. Its marked edges is because they are not formed regularly by regular processes like erosion, it is usually regarded as a fault where ever they are seen.
Elevated portion of land and long cliff or steep are the characteristic of an Escarpment Landform.
Escarpments are mainly found overlooking a water body or a valley or plain that held a water or at a place that is prone to erosion or where erosion used to occur.
"It is a steep slope or cliff, such as one that marks the edge of a range of hills"