The correct answer is A. Slavery was not an issue
In the beginning of the 1800's slavery was still a big thing in the south even though the North disproved of it. That is one of the main reasons why the civil war was fought and why the emancipation proclamation was made to free the slaves from rogue states.
There are four main types of local government- counties, municipalities (cities and town), special districts, and school districts. Counties are the largest units of local government, numbering about 8,000 nationwide. They provide many of the same services provided by cities.
On March 19, 1920, the United States Senate rejected for the second time the Treaty of Versailles, by a vote of 49-35, falling seven votes short of a two-thirds majority needed for approval.
The Treaty of Versailles was a formal peace treaty between the World War I Allies and Germany. The leaders of the “Big Four” Allies (Britain, France, Italy and the United States) met in Paris in early 1919 to draft the treaty. President Woodrow Wilson presented his Fourteen Points, a series of measures intended to ensure future peace. The points included the formation of an international organization known as the League of Nations (similar to the modern United Nations), which was adopted in the treaty.
Cited but hope it helps.
It was the Hawley-Smoot Tariff.