Northerners who descended upon the south to take control of the government were called
a democrats
b scalawags
c carpetbaggers

C. Carpetbaggers

Explanation:

Carpetbaggers were northerners who could fit everything they owned into a carpet bag and move to the South in order to take advantage of the many opportunities that would open up.

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interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)

the correct answer option is: weapons.

explanation:

tensions rose as the two opposing superpowers competed for 'weapons'.

referring to the cold war (1945-1991), the two superpowers, usa and ussr, experienced a phase of struggle and conflict with each other. these two superpowers considered each other as a threat to their survival and thus opted for policies to strengthen their positions.

the two superpowers never went to war with each other directly but competed for weapons to preserve their positions.