Answer:
D. All of the above
Step-by-step explanation:
Currently, the world is facing the Sixth Mass Extinction of both wildlife and plants species, especially in regard to mammal populations. This mass extinction is the result of human activities and anthropogenic climate change as well as global warming.
Among the most harmful activities that impact wildlife populations are habitat destruction (A) like deforestation, pollution (B) such as the release of toxic chemicals that come from fertilizers and pesticides, and the introduction of exotic species into ecosystems (C) that disrupt native species' habitats and pose threats due to competition and predation.