Answer:
b. An increase in the population of prey it feeds on
Explanation:
There's only one way in which the predator population can be growing, and that is if the population of the prey animals is growing as well. The reason for this is that the prey animals are the ones that the predators feed upon, so the less prey animals there are, the less food, thus less predators, and the more prey animals there are, there's more food, thus more predators. It is a predator-prey relationship that directly affects both sides and their numbers. The population of predators will grow as the population of prey animals is growing, but eventually that will stop as the increased number of predators will regulate the prey population, thus reaching an equilibrium in the ecosystem.
