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.
