For me, both B and D make sense. Do you have any text I can read?
Supreme Court allowed legal segregation - invalidated Civil Rights Act, Plessy vs. Ferguson and separate but equal doctrine
Don't worry chapter 18 is gonna be easier
The type of city government where profesionally trained executies run the city in a neutral manner would be called a council-manager government. This type of government can sometimes be very useful, especially when things need to be done.
-Not using big words you don't understand
-Simplifying things so you can remember them easier
-Maybe coming up with a parody of a song or even an abbreviation so you can remember something
-Organizing them in a way that makes sense to you
-Listing only what you need to know, not extra information
I hope this helps you!
