Which of the following helps to explain the moderate climate in parts of the central Andean Altiplano Region?
A. Light pollution traps greenhouse gases that warm the earth's surface.
B. The low elevation means that the region is closer to the sun's rays.
C. Subterranean hot springs produce geothermal energy that heats the region.
D. Lake Titicaca stores solar energy that warms the area at night.