The correct answer is D) amount of taxes to collect.
The statement that was not an economic decision that family groups made and that led to the development of a civilization is "amount of taxes to collect."
The first human civilizations had to make some decisions in order to survive such as crops to cultivate, location of settlement, and resources to use. Let's remember that early humans were nomads, hunter-gathers that used to follow herds to hunt them and feed their families. During the Neolithic Revolution, humans started to settle in one place and learned agriculture techniques that allowed them to grow crops and domesticate animals. That was the case of the Sumerians that established between the Euphrates and Tigris Rivers, in the region if the Middle East that today is Iraq.
The original thirteen colonies flourished and developed into what became the fifty US states, thanks to ample resources and opportunities. This country's political geography was the consequence of many treaties and conquests that resulted in the country reaching from the Atlantic to the Pacific Ocean.
Difference of government philosophy and differing sects of Islam.
For the Iranian Revolution, the question of a secular versus religious government was of concern. The government being overthrown was more secular and Western influence was there. The revolutionaries were fundamentalists who wanted religion to return to the government.
In the Iraq-Iran War, it was a difference of religious sides within Islam. Iraq is more Sunni and Iran is more Shi'a. These sects have a long history of conflict and the difference in religion and politics influenced the war. Also the question of western influence in the area was of concern.
