A Rain Shadow Is Caused By

A rain shadow is caused by:

A) ocean currents that heat and cool more quickly than do air or landmasses.
B) ocean currents that heat and cool more slowly than do air or landmasses.
C) cool, dry air that warms as it moves down over a mountain, picking up moisture.
D) warm, moist air that cools as it moves down over a mountain, releasing moisture.
E) large mountain masses in the center of continents that restrict air flow.