There are several ways in which a reader can determine the theme of a piece of literature, but the best way is to pay close attention to the very opening lines, where the theme is usually set up.
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<span>It was not an actual railroad. It was a network of houses and buildings that were used to help slaves escape from the South to freedom in the Northern states or Canada.</span>
The answer would be social.
The correct answer is: the people in the north who said that all African American people should be slaves.
