Answer:
The best answer to the question: Identify the methods used to compensate for the scarcity of resources in the ancient world, Trade and Migration, would be, A: Spread knowledge of agriculture to humans around the world.
Explanation:
As humans began to develop techniques and technologies during the Neolithic Revolution, these spread out throughout the regions that were inhabited, and allowed humans in general to settle and initiate agriculture and spread knowledge of how to use the land without having to live a nomadic lifestyle, thanks to trade and migration.
Before agriculture, people migrated as hunter-gatherers who depended entirely on the resources on a specific place, and they moved on in search of new resources, as the old ones were finished. But the Neolithic Revolution, and with the discovery of agriculture, the production of food without having to chase after the resources allowed first for people to settle down, and second, for trade to emerge now not just as a simple exchange of one food for another, but as a business of exchanges to obtain goods that were produced in one place for those of another place. Trade also encouraged migration, but now not as a lifestyle meant for survival, but rather, as a business.
Many settlements began to spread particularly from the historical famous Fertile Crescent (the patch of land between the Tigris and Eufrates rivers, in Mesopotamia) as food surplusses allowed for much more dynamic trade and for people to seek settlement in new place thanks to agricultural development.
