What would happen to the size of the carnivore population if the herbivore population increased? decrease increase die off stay the same

The correct answer is that the population of carnivores animal will increase.

If the animals that are herbivore increases in number say its population increases then the population of carnivores animals will also increase.

This will happen because the carnivores will have more food for their survival. The availability of more food (resources) will increase the population.

the population will increase increases because the carnivore will have plenty herbivore to feed on.