I think assimilation was treated two ways. The Younger Family welcomed the White culture and discriminated and fear the Black Culture. The family was able to live amongst the White Americans but considered the Black Americans as "low" compared to the Caucasians. The play also emphasizes the philosophy that the Black Americans are happier with their fellow African-Americans.
The process of giving credit for ideas which are not the writer's own ideas is called documentation.
On the local level, it would be A. an elected school board. Because most of the school board is made up of people that live in school district.
Hope this helps (:
(1954) Brown v.s. Board of Education
