They stoped importing British goods into the colonies
"Concealment" can be an antonym for "Exposition"
Clarence Thomas (born June 23, 1948) is an associate justice of the Supreme Court of the United States. He was nominated by President George H. W. Bush and confirmed by the United States Senate to succeed Thurgood Marshall, and is the second African American to serve on the Court.
I read a book series on this subject and I'm pretty sure its D. All of the above. Because many African Americans were indeed looking for job opportunities instead of being slaves and working on plantations, would face rarely any harsh racism there, and well the government didn't exactly help but there was many operations aiding the move.
Cause never mind just watch crashcourse world history its on youtube