Read this sentence from the passage.

These Caribbean natives are classified as an invasive exotic species that is currently threatening Florida's ecosystem and biodiversity.

How does this sentence fit into the overall structure of the text and help contribute to the development of ideas?
A. The sentence supports the ideas that the Cuban treefrog is a Caribbean native and that it has a limited impact in Florida.
B. The sentence supports the ideas that the Cuban treefrog is taking over Florida and threatening the natural habitats of other animals in Florida.
C. The sentence supports the ideas that the Cuban treefrog is native to Cuba and creates fear about the safety of the ecosystem in Florida.
D. The sentence supports the ideas that the Cuban treefrog is a species that will take over Florida's ecosystem and change it permanently.