With Regard to the Destruction of Tropical Forests, the Focus

With regard to the destruction of tropical forests, the focus is often on biodiversity and the impact on these ecosystems. What is a direct compelling benefit to humans that helps explain why these forests need to be preserved?

A) Natural and undisturbed areas are important wildlife habitats.
B) The plant diversity provides shade, which reduces the impact of global warming.
C) The diversity could contain novel drugs for consumers.
D) These forests produce goods for consumers such as avocado and macadamia nuts.
E) This diversity could contain undocumented insect species.