This question has options. Select from options: Read this fact: "as population of predators decreases , the population of prey will increase in an environment"

Now answer this question: "When a predator population decreases in an environment, what happens to other populations?"

Available choices:
(I) prey numbers will boom;
(II) the amount of prey will go down;
(III) new predators will arrive;
(IV) all populations will increase;
(I)