I don't know the answer but I know what's NOT THE ANSWER
Answer:
a balance in Congress between free and slave states.
Explanation:
It’s B on Edegenuity & it’s right.
Answer:
The United States experienced major waves of immigration during the colonial era, the first part of the 19th century and from the 1880s to 1920. Many immigrants came to America seeking greater economic opportunity, while some, such as the Pilgrims in the early 1600s, arrived in search of religious freedom.
Answer:Lincoln began his public career by claiming that he was "antislavery" -- against slavery's expansion, but not calling for immediate emancipation. However, the man who began as "antislavery" eventually issued the Emancipation Proclamation, which freed all slaves in those states that were in rebellion.