yeah they are brand names I think but what is the question?
Answer:
The Soviet Union and the U.S. were primarily responsible for the Cold War because they were the two biggest superpowers of their respective government and economic types. The United States was the best Capitalistic and Democratic country, while the Soviet Union was a Communist government. This led to proxy wars between the two, most notably the Vietnam War.
The excerpt mentions central government and the states but does not speak (except by mentioning) of executive branch or amendments, so we reject options 2) and 4).
Among options 1 and 3: 3 speaks of central government having the power over the states, which is the opposite of what the text says: it stresses how much power should stay with the states.
So the correct option is 1)
The most likely effect of the scarcity of potato crops in this region is that demand has dropped, since people are looking to other crops to satisfy their needs.