The articles of confederation gives some powers to the federal government
but says that otherwise each state "retains its sovereignty, freedom and
independence, and every power, jurisdiction and right, which is not by this
confederation expressly delegated to the united states."
what political idea does this quote express?

The case of brown v. board of education was started when a. oliver brown's daughter had to walk 21 blocks to the nearest school when an all-white school was only 7 blocks away. b. oliver brown's son was caught at a sit-in at the local school district. c. oliver brown's son was unable to participate in the school's all-white football team. d. oliver brown's daughter was unable to attend high school because there were none for her to attend.