I just took a test on this and the answer is the process of incorporation, D!
Answer:
The Compromise of 1850 included the Fugitive Slave Act, which became largely disputed within the northern free states. The Fugitive Slave Act stipulated that citizens of free states were required to return slaves found in the North. After the Act was passed many African Americans in the North fled to Canada.
Explanation:
Hope that helps you! :)
to provide protection from their enemies