Wind plays the role of creating waves in the sea. The blowing air drags the water present in the surface of the water to cause the formation of sea waves. The size of waves depend on the intensity of the wind speed. When the wind speeds are high, sea becomes turbulent and disturbed, and the waves formed are huge. When the wind speeds are low, the sea remains undisturbed, and the waves formed are small in size. Hence the answer is b.increased wave size.