Answer:
The Great Migration was the movement of some six million African Americans from rural areas of the Southern states of the United States to urban areas in the Northern states between 1916 and 1970.
Explanation:
They had no slave population
B. the freedom to assemble together for peaceful meetings
this freedom is protected by the first amendment to the constitution, which reads "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances."
The correct answer is:collective bargaining to reach agreements on wages and hours