Growing Population had the greatest effect on growth of cities and the expansion of cities to suburbs.
Answer:
Wolves are animals who usually eat dead animals, so they clear the forests of dead corpses. When wolves were brought back to the park, they not only killed elk, but also changed their prey's behavior patterns. The herbivores started to avoid areas like valleys and gorges where they could be easily hunted by predators. Deer and elk populations increased substantially, resulting in overgrazing, particularly of willows and other vegetation important to soil and riverbank structure, leaving the landscape vulnerable to erosion. Without wolves, the entire ecosystem of the park suffered.
The correct option is "D" (They can avoid taxes by moving the company location). And many large corporations are using this advantage to maximize their profit. For example if US has a higher tax compare to India/China, most likely most of the corporations will move to India/China. So that they can pay less tax thus maximize their profit.