John Brown. <span>Slavery ended with the ratification of the 13th amendment to the Constitution.The Emancipation Proclamation by Abraham Lincoln which was adocument that abolished slavery. Later Martin Luther King jr. endedsegregation</span>
C. To help plains tribes forget their way of life
With the widespread availability of electricity industries changed from coal to electrical machinery, it changed how jobs worked and also how American homes worked. This also changed consumerism, because the easy access to electricity Americans could buy new products that were not available before, such as radios, phonographs, electric irons, refrigerators, washing machines, electric razors, vacuum cleaners, and others. Advertisements were focused on how women's job at home would be easier with those new products this way they tried to convince people to buy other things other than food and clothes.
A would be the answer to your question
<span>They give particular administrations that are not being provided by existing broadly useful governments. Most play out a solitary capacity, however in a few occasions, their empowering enactment enables them to give a few, generally related, sorts of administrations. The administrations given by these regions run from such fundamental social needs as healing facilities and fire security, to the less prominent errands of mosquito reduction and upkeep of burial grounds. In-short, they bring the government closer to the people at the "grass-root" level.</span>