<span> (B) lower labor costs. It's one of the big reasons why a lot of manufacturers build factories elsewhere such as Mexico, China, Southeast Asia, etc.. because the labor costs are so low. Workers there can be hired at far lower costs there than those in nations like the United States.</span>
I would say the Hittites and the Celts. The Hittites thrived and disbanded before the beginnings of the Roman empire. The Celts were absorbed by the Romans but were keen to follow their ways.
America must extend commercial relations with Europe while insuring that the US has as little to do with European politics as possible. This is because if America gets too involved with European politics, then the US will lose more money in European wars that do not truly affect them.
<span>Significance: This was the first principle of American foreign policy. Peace, commerce, and honest friendship with all nations, entangling alliances with none.</span>