Concept:Wind erosion is the wearing away and removal of surface material by the action of wind.
Explanation:Deflation is the process in which wind lifts and carries away loose, dry particles such as sand and dust.
This directly erodes the land surface by lowering it.
Saltation and traction are not erosion; they are methods by which wind transports sediment.
Saltation is the bouncing movement of sand grains.
Traction is the rolling or dragging of heavier particles along the ground.
Solution is a chemical process, usually caused by water dissolving rocks, not by wind.
Thus, deflation is the only process among the options that is a type of wind erosion.
Answer:A. Deflation