Which of the Following Describes the pressure Gradient Force

Multiple Choice

Which of the following describes the pressure gradient force ?

A) it drives air from areas of higher to lower barometric pressure.
B) it decreases with height above the surface.
C) it causes apparent deflection of winds from a straight path.
D) it is the only force acting on atmospheric flows in the upper troposphere.
E) its force is exerted uniformly throughout the atmosphere.