Explanation:
The Chalcolithic period, or Copper Age, was an era of transition between the stone tool-using farmers of the Neolithic and the metal-obsessed civilizations of the Bronze Age. The Copper Age was really a phenomenon of the eastern Mediterranean regions, and occurred from roughly 3500 to 2300 BCE.
In this way, geography<span> kept early </span>China<span> culturally and economically isolated from the rest the world. However, </span>ancient Chinese<span> civilizations were exposed to the sheep and cattle herders inhabiting the grasslands in the northwest, and the fishing cultures along the southeast coasts.</span>
The answer is selective incorporation which is letter b. It is
a principle written into the Constitution that safeguards American citizens
from their states’ ratifying of laws that could break upon their rights.
Selective incorporation is not an act or a law, but a doctrine that has been recognized
and established time and again by the United States Supreme Court. Fundamentally,
selective incorporation allows the federal government to place limitations on
the states’ lawmaking power.
The answer is: Conspicuous Consumption
Conspicuous consumption is the type of consumption that is not made to fulfill your basic needs to survive, it's made for sophistication or to increase your social status.
Jetting off to a remote destination for dinner is definitely very inefficient if the sole purpose is only to absorb necessary nutrients to your body. Sophistication or social status would most likely become the factors in such dinner activity.