B. They were the largest participants in the Great Migration.
When you’re patient you can do anything you set your mind to
Answer:
Eventually, the march went on unimpeded -- and the echoes of its significance reverberated so loudly in Washington, D.C., that Congress passed the Voting Rights Act, which secured the right to vote for millions and ensured that Selma was a turning point in the battle for justice and equality in the United States.
The best paraphrase would be choice C
C) Northern states who could use the lands to create colleges serving all US citizens.
The Morrill-Land Grant provided free land from the federal government to build agricultural colleges. This grant program ensured the US was continuing technological advances in agriculture. In doing this it made sure the Mid-west had a viable economy and a place in the US economic system. Many colleges were built with a focus in agriculture, an example is Iowa State.