Answer:
Industrial changes and the intermix of white and black people begun
Explanation:
where are the answer choices? please be more specific so we can help you
The correct one should be <span>Merchant steamships</span>
The Supreme Corut ruiling Brown vs. Board of Education ruled that segregated schools was unconstitutional. This was the single biggest reason for the Civil Rights movement because it allowed for the challenge of segregation in all areas.
Schools were segregated everywhere in the country
It might be B though.