I would go with C cause its the only one that would go along the lines of buying or selling
The author states that the Soviet Union’s launch of Sputnik caused the United States to begin investing in science, technology, and innovation. Sputnik’s successful launch caused this reaction in the United States because the Cold War led Americans to fear the possibility of the Soviet Union leading the world in science and technology. Rather than give in to fear or hide from challenge, the United States stepped up and made a commitment to science, math, and innovation.
Answer:A Danube
Explanation: The three rivers shown are the Volga 1, Ob 2 and Lena 3 all in Russia and the Danube is not shown because it is not in Russia but flows in behind the Adriatic Sea over to Germany and so is in a different part of Europe though all 4 rivers are major rivers in Europe.
Beginning with George Washington's presidency, the United States sought a policy of isolationism and neutrality with regards to the internal affairs of other nations.
Besides connecting the eastern united states with the western united states, the transcontinental railroad was also instrumental in bringing in immigrants from ireland and china.
hope this helps, God bless!
