The cane toad has very poisonous glands. It was moved from its native environment and introduced to a new environment to control pests. What impact can this have on the new environment?

A. A negative impact, because the number of predators that feed on the toads will decrease.
B. A negative impact, because the pests in the new environment will have more sources of food.
C. A positive impact, because the population of predators that feed on the toads will increase.
D. A positive impact, because the toads will spread disease among other animals.