A is the answer to the question
Answer:
The Greensboro sit-in was a civil rights protest that started in 1960, when young African-American students staged a sit-in at a segregated Woolworth's lunch counter in Greensboro, North Carolina, and refused to leave after being denied service. The sit-in movement soon spread to college towns throughout the South.
Explanation:
Answer: the U.S.A is an independent country
Explanation:
Immigration would be the best option