When transitioning from a mostly rural to a mostly urban society, it is important to keep sustainability in mind. Try to find ways in which the most energy is conserved, which will increase employment and lower revenue and pollution.
I will go with choice (C) density dependent pattern
Shock Treatment (or Fish Fry) Presently several hundred feet of electrified canal water is all that stands between the most advanced front of Asian carp and a free run to the open waters of Lake Michigan.
Hope this helps :)
