Answer: B. Military occupation of the South was ended
Specifically, Union troops were pulled from Florida, South Carolina, and Louisiana. This was known as the Compromise of 1877, which helped Rutherford Hayes to formalize the presidency (otherwise lawmakers were threatening to filibuster the results).
<span>Japan aggressively expanded the territories under its influence, taking over parts of China, invading territories claimed by the Soviet Union, and fighting across the Pacific during World War II.</span>
American factories were retooled to produce goods to support the war effort and almost overnight the unemployment rate dropped to around 10%