Scarcity is the fundamental challenge confronting all individuals and nations. We all face limitations... so we all have to make choices. We can't always get what we want. How we deal with these limitations—that is, how we prioritize and allocate our limited income, time, and resources—is the basic economic challenge that has confronted individuals and nations throughout history. Hope this helps :D
I suppose that's true, you need to be able to communicate information.
Following the Bay of Pigs incident, along with other factors, led the Soviet's to seek to place long and intermediate range missiles in Cuba. Therefore, the answer to this question is B, The Soviet Union sent missiles to Cuba.
Progressive leaders in the USA were instrumental to the fourteen points that laid the ground for the establishment of the league of nation. they however frowned upon the treaty of Versailles for its desire to punish the Germans argued that this would not lead to true peace. Progressives were prominent idealists. however, their ideology was defeated in the floor of the house because conservative leaders led by Harding had taken over the USA leadership.