I’ve in the Caribbean for 12 years. The answer is D.
One of the most important roles of the rainforest is moderate destructive drought and rain cycles in local areas.
In Geography, when you mention characteristics, it refers to the actions and the ideas of man that changes or changed the Earth. Characteristics in Geography can also refer to as the natural and current features seen all around the Earth.
~ Drought hazard is generally high for semiarid areas, such as Northeastern and Southern South America, Northern, Southwestern and Horn of Africa, Central Asia, Australia, West U.S. and the Iberian Peninsula; and low for tropical regions, such as the Amazon, Central Africa and Southern Asia