A. Unrestricted Submarine Warfare.
This caused Germans to attack vessels that carried US citizens, bringing the US into the war.
B. geographical boundaries created in earlier historical periods
They were beiing mean people.
manufactured goods
First popularized in Europe during the 1500s, mercantilism was based on the idea that a nation's wealth and power were best served by increasing exports, in an effort to collect precious metals like gold and silver. Mercantilism replaced the feudal economic system in Western Europe
