Which is a major threat to biodiversity? A. Logging allows for the collection of firewood in the Mountains of Southwest China. 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.