By the end of the Reconstruction era, most African-Americans in the United States A) had received a free college education paid for by wealthy northerners. B) found themselves owners of the land their ancestors had worked on as slaves. C) began to migrate in massive numbers to the rural South to pursue farming jobs. D) found themselves increasingly left out of the political process because of poll taxes and literacy tests.

I believe the answer is: D) found themselves increasingly left out of the political process because of poll taxes and literacy tests.

In the past, voters are required to pay and past literacy test before they able to select candidates. This prevent many African American from voting since they receive no education during their time as slaves, which create a situation where there is no representatives that are willing to fight for their cause.

Found themselves increasingly left out of the political process because of poll taxes and literacy tests.  

Further Explanation:-

The Era of reconstruction was a very important chapter in the American civil rights movement. The reconstruction era was that period which ended the issue of Slavery in the United States. Means of taxation were completely changed during the era of reconstruction in the south from its earlier days until today, Property tax was the main source of tax in the country. Wealthy landowners from the south permitted to do self accession of their land. The revenues of the state in regards to tax collection also came in from the fees and sales takes which the government used to get from slave auctions. But, During the period of reconstruction, the legislature of state was mobilized in order to provide the Public need which was eventually more than that of the previous governments of the United States.  In order to build schools, investing in infrastructure, opening charitable institutions such as hospitals required money and for that, the government had to increase tax rates which were very low. By the end of the Reconstruction era, most African-Americans in the United States found themselves increasingly left out of the political process because of poll taxes and literacy tests.  

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Answer details:

Grade – High School

Subject – History

Chapter – Reconstruction Period  

Keywords –  Reconstruction, United States, Slavery, Tax, Sales tax, Government, Schools, Hospitals, Public, politics.