<span>The U.S. avoided involvement in WWII before December 1941 because the Congress and the President wanted to believe that the war did not affect the U.S. This was called "isolationism" the idea that a country could isolate itself from others. </span>
The correct answer is "practices associated with political machines."
During the late 19th century and early 20th century, political machines rose in popular in populous American cities. The goal of these machines were to get specific individuals elected so that they may control local laws. These political machines would then use the candidate as a means to reap personal benefits based on the laws made for the city. These actions are seen by individuals such as Boss Tweed and Tammany Hall.
They are bad blacks and should not have owned slaves
On May 12, 1949, one of the first Cold War crises came to an end. The Soviet Union decides to lift the 11-month-long blockade against West Berlin. The three western sectors of Berlin were unified as West Berlin and placed under West German administration.