Which of the Following Is Not True About Protecting Biodiversity

Multiple Choice

Which of the following is not true about protecting biodiversity?

A) Once a species is lost from an area, it isn't typically re-introduced because doing so would endanger other species in that ecosystem.
B) The mining industry exerts a serious threat to biodiversity.
C) Gene and see banks provide "insurance" for the long-term survival of species.
D) The cultivation of densely-planted "energy crops" grown in tropical ecosystems to provide biofuels is a threat to biodiversity.