Refer to the Figure Below

Multiple Choice

Refer to the figure below. In air circulation at the tropics, what is responsible for the rain?

A) As air warms in the tropics, it drops rain when it becomes supersaturated.
B) As air rises and cools, it holds less moisture and drops the excess as rain.
C) As air rises, it becomes less dense and therefore less able to hold moisture.
D) As air rises, it meets sunlight entering the atmosphere, which stimulates rain.
E) As air descends, it becomes warmer, and warm air is less able to hold moisture.