Based on the Figure Below,do Deserts Tend to Form Where

Based on the figure below,do deserts tend to form where air is moving up from or down toward Earth's surface?

A) Deserts appear to be more common where air is rising up from the Earth's surface.
B) Deserts appear to be more common where air is sinking down toward the Earth's surface.
C) Deserts appear to be more common where air is traveling parallel with the Earth's surface.
D) The location of deserts does not have any relation to the direction of air travel.