Deserts Caused by Global Patterns of Air Circulation Are Dry

Deserts caused by global patterns of air circulation are dry because

A) as the moist air above deserts rise, all of the water evaporates
B) dry, descending air above deserts draws moisture from the soil
C) the moist air above deserts is absorbed by the sandy desert soils
D) because of the warm temperatures, all the moisture in the deserts is drawn away and is transported by air currents to the tropics
E) all of the air currents above deserts have no contact with bodies of water