Which of the following can reduce biodiversity within a natural environment? A. Non-native kudzu out-compete native plants in the eastern United States. B. Acacia trees of Central and South America provide shelter for stinging ants, while the stinging ants sting other insects on the trees. C. Native olive colobus monkeys follow native Diana monkeys in the Guinean Forests of West Africa as extra protection from predators. D. Sea anemones along the California coast provide clownfish with protection from predators, while the clownfish defend the sea anemones against butterflyfish, which eat the sea anemones.