The correct answer is:
The behavior of factors affecting the economy.
Macroeconomics is the branch of economics that focuses mainly on the factors affecting the economy and on their performance, structure, and behavior. Macroeconomic theories usually relate the phenomena of output, unemployment, and inflation.
The 'two rivers' of the name referred to the Tigris and the Euphrates rivers and the land was known as 'Al-Jazirah' (the island) by the Arabs referencing what Egyptologist J.H. Breasted would later call the Fertile Crescent, where Mesopotamian civilization began.
I think it was 4 countries that establish settlements in Georgia