The key details in this excerpt develop the central idea that the employment laws in Montgomery were unfair as they showed that Black people were not hired for jobs that matched their education.
Rosa Parks got her school diploma but she still did not get job because she was black. The laws of the city were quite unfair as seen in the case of Rosa. The central idea of "Freedom Walkers” by Russell Freedman was that racism prevailed in the city to the extent that black people did not even used to get jobs that they deserved. She had to do clerical work.
Thus, the correct option is C.
To learn more about Russell Freedman here
https://brainly.com/question/18688550
#SPJ1