Concept:Pressure:Pressure refers to the force applied perpendicular to the surface of an object per unit area over which that force is distributed.The SI unit is the pascal (pa).The formula for pressure is:P = F / AThe pressure is dependent on the area over which the force is acting.The pressure can be decreased or increased without any change in the force.The force applied is constant if the surface becomes smaller, the pressure increases, and vice versa.Wind:Wind refers to the flow of gases on a large scale or moving air.Wind pressure:It refers to the total force exerted upon the structure by the wind.Explanation:Gases move from high-pressure to the low-pressure area and the bigger the difference between the pressures, the faster the wind will move. Hence, At 12 pm, the pressure difference between the areas is bigger, then the wind will flow faster. The wind is stronger and gusty in the afternoon as compared to morning and evening because the thermal turbulence increases as the surface heating and instability increase.And the wind speed tends to decrease after sunset because the surface of the Earth cools much more rapidly than does the air above the surface. Thus, from the above discussion, we can say that the correct answer is 12 P.M.