The late nineteenth-early twentieth century saw the rise of the middle class the rise and dominance of the republican party the need for a third political party woodrow wilson switch from the republican party to the new democrats

The correct option is "the rise of the middle class "

The term middle class is a grade or class of stratification of social class that applies to people with an average socioeconomic level that is between the working class and the upper class. The middle class is a term that supposedly designates the social segment below the upper class, which is the one that lives on their incomes and above the lower class in sociology.

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.

the correct answer is: (1) affected by gerrymandering; (2) not affected by gerrymandering.

gerrymandering is known as a practice that intends to establish a some kind of political advantage for a particular party or group. to do this district boundaries are manipulated. the new resulting district is named a gerrymandering.

in other words, what gerrymandering does is to draw the boundaries of electoral districts trying to benefit the party who is doing it. sometimes, the party controlling the legislature will redraw it so they can maximize the number of districts they are likely to control.