Which problem caused by the war was addressed by requiring Germany to pay huge reparations? the rise of socialism in Russia
the increase of inflation in Germany
the massive war debts of European countries
the huge number of casualties suffered during the war

C. The massive war debts of European countries

Explanation:

I assume you are talking about post-ww1.

The British and French had accepted the proposal in the Treaty of Versailles that Germany was to blame for the war and massive war reparations must be paid for all the damage caused by the war.

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.