Sorry the answer took so long -laughs- but it only created a social hierarchy that stood for decades.
The answer is C. They allowed African Americans to claim land.
The correct answer is A.) electric sewing machine
Electric sewing machines replaced hand sewing and made it so that cloth could be produced at a faster rate than ever before.
<span> is an example of the free rider problem, because the programs benefit everyone and many listen but not everyone pays for it.</span>
