I believe its B as 'progressive' means <span>favoring or advocating </span>progress, change, improvement, or reform, as opposed to wishing to maintain things as they are, especially in political matters:<span>
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Fallout shelters are still someone in use but not for the purposes of nuclear fallout, only severe storms, etc. Th Interstate Highway System is the best choice from this list.
A i believe. This is because it does not always go for popular vote and is always taking away power from states just cause of their population.
After the civil war there was a huge surge to rebuild the infrastructure of the U.S. many Americans wanted to move west to escape the horrors of the civil war, which started the race to the west coast (intercontinental railroad)
