Answer:
A. Blanche K. Bruce
Explanation:
Blanche Kelso Bruce was born on March 1, 1841 at Farmville, Virginia, United States. He belongs to a slavery family. He supported Republican party and represented Mississippi in the United States Senate from 1875 to 1881 and elected as a first African-American senator, who served full term in the Senate. He died on March 17, 1898 at Washington, D.C., United States.
Hence, the correct answer is "A. Blanche K. Bruce".
It increased because industrialization & mass production came to replace lots of jobs. So a farmer for example was replaced by machines and so he and his family would have to move from a rural area (farm) to an urban area (city) to get work doing hard labor in factories. The size of cities also grew because at this time the railroads made getting from places easier than ever and allowed many people to move to cities. Cities were also were many companies would set up factories and workers moved their to be closer to their jobs
I believe one of them is the Gettysburg Address