Context: Figure: Sonoran Desert.
The Sonoran Desert is a hot desert ecosystem in the southwestern United States and northwestern Mexico. This desert is home to wild saguaro cactus, which can grow over 70 feet tall.
Which statement describes the Sonoran Desert ecosystem?
A. It has thick, moist soil.
B. It has warm, wet summers.
C. It has a small amount of rain.
From the given choices, select the correct answer and reply with the letter of the chosen option.

C