How was the Marshall Plan the first great success of George F. Kennan's idea of containment?
a.) The Marshall Plan demonstrated to European countries that there was a quick, easy solution to the Soviet threat.
b.) The Marshall Plan built good will toward the United States that helped contain the expansion of communism.
c.) The Marshall Plan proved there was no need for a full commitment of U.S. economic and political aid to Europe.
d.) The Marshall Plan showed European countries that the Soviet Union was willing to risk its own security to expand.