Why Is This Part of the Colorado River in Mexico

Multiple Choice

Why is this part of the Colorado River in Mexico dry?

A) Severe droughts have reduced water flow so that the river often dries up.
B) So much water has been diverted for irrigation that the river often dries up.
C) The Colorado is an intermittent river, which means it naturally dries up in the late summer.
D) Dams built for hydroelectric power generation have cut off water to this region of the Colorado River.