The Kansas-Nebraska Act<span> was passed by the U.S. Congress on May 30, 1854. It allowed people in the territories of </span>Kansas<span> and </span>Nebraska<span> to decide for themselves whether or not to allow slavery within their borders. The </span>Act<span> served to repeal the Missouri Compromise of 1820 which prohibited slavery north of latitude 36°30´.</span>
Answer:
b. indentured servants
Explanation:
The migrants could sign a contract to become indentured servants to pay for the Atlantic crossing. They would be servants for 5 to 7 years and after that, they would be given land and clothes, farm tools and seed. After the economy got better in Europe and emigration to Chesapeake decreased the servants were replaced by African slaves.