The Great Deserts and Associated Arid Areas of the World $\circ$

The great deserts and associated arid areas of the world mostly lie along the western sides of the continents at about

A) 0 ^$\circ$ north and south latitude.
B) 15 ^$\circ$ north and south latitude.
C) 30 ^$\circ$ north and south latitude.
D) 60 ^$\circ$ north and south latitude.
E) 90 ^$\circ$ north and south latitudE.