In 1870, the era was known as the Gilded Age. During this age, most people moved from farming areas to the city to live. Consequently, there was an increasing number of manufacturing jobs. Therefore, your answer is the last option (D), factory workers.
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- Dotz
He vetoed it for various reasons. For starters, he believed that it was a thing up to individual states and that it infringed on the states right to choose. Another reason was that he believed that such beneficial extension would not make people equal, but rather it would be racist towards the white people. His main argument, however, was that the bill would have a certain group gain rights that they are not entitled to, while a large part of the states does not even have representation in the congress, and that the congress needs to be enlarged first.
Watch the movie Frosty the snowman and it'll help you. Good luck