Over the years, some iguanas imported to the Florida Keys as pets have been released into the wild. The population of iguanas continues to grow steadily because the iguana has no natural predators in Florida. The increase in the iguana population upsets the local ecosystem in a number of ways, including increasing erosion of the seawalls near which the iguanas build their burrows. When will the iguana population most likely stop growing? A. when the iguana population finds a new source of food B. when the iguana population exhausts its food supply C. when native lizards fall victim to exotic parasites D. when the predators of iguanas are eliminated