Option 1: Playas are shallow depressions on the Earth`s surface that are typically filled with water. They are formed due to the accumulation of sediment or the evaporation of water.

Option 2: Yardangs are elongated features that are formed by the deflating action of wind. They are carved out of the surface material, such as rock or sand, by wind erosion. Yardangs are typically streamlined in shape, with steep sides and a gentle slope at the windward end.

Option 3: Ventifacts are rocks that have been shaped and polished by the erosive action of wind-blown sand or ice crystals. They often have flat or grooved surfaces and can be found in areas with strong winds.

Option 4: Sand dunes are mounds or ridges of sand that are formed by the accumulation of wind-blown sand. They can vary in size and shape and are typically found in deserts or coastal areas.

The correct answer is Option 2: Yardangs. Yardangs are formed due to the deflating action of winds, which erode the surface material and create elongated depressions.