The correct answer to this open question is the following.
The factor that played in the United state enjoying economic prosperity during the roaring '20s was that the country did not incur in big amounts of debt during World War 1, as Europeans countries did. Indeed, the United States loaned big sums of money to Western European countries to support the war effort. That is why the United States could live a period of economic prospeity in those years called "the Roaring 1920s," a period in which people had money or could buy using credit all the things they needed or they liked.
Throughout his reign, Charlemagne has (A) expanded his kingdom, (C) expanded education and learning, and (D) supported monasteries in their efforts to preserve learning.
For the second set, Charlemagne (A) united a vast realm under the Christian faith and (C) became the first emperor of the Holy Roman Empire.
After the end of WWI, the Treaty of Versailles was signed by the Allied Powers and forced upon Germany. In this treaty, Germany had to take full responsibility for starting the war and were forced to pay reparations. A reparation is an amount of money a country/individual must pay for damages they have caused. In this case, Germany had to pay for the damage they caused in other countries during World War I. The cost of these reparations were very expensive, leading to the rapid decline of the German economy.
The Supreme Court held that the Supremacy Clause (Article VI, Clause 2), which elevates federal law above state law when the two are in conflict (and do notinvolve a right explicitly reserved to the states) protected the bank from being taxed by the State(s). Chief Justice John Marshall declared the states couldn'ttax the federal government. Case Citation:McCulloch v. Maryland, 17 US 316 <span>(1819) </span>
