I think that the answer is C. Hope this helps
Answer:
Panama had become a center for drug money laundering and a transit point for drug trafficking to the U.S. and Europe.
It reduced the need for slaves,and was a much quicker process.
In general, "<span>d. an area free from warfare</span>" is not essential in building a new civilization, since in order to build a civilization in the first place you need a surplus of food and warfare is almost inevitable.
During the Neolithic age technology or tools were made using bones and stones where the early human civilizations used them for hunting and gathering. While during the Bronze age, humans have already adapted and learned new ways how to carve out tools and other materials using a more sturdy material. Both ages were turning points in human history as they have determined the course of how society will be formed and how it became civilized.