Out of the choices given here. the Constitution reflects the principle "republicanism" because it divides the legislative branch into two houses of elected officials.
The King decided if they deserved representation in Parliament
Ku Klux Klan was a known racist organization that wanted to frighten the black population - the correct answer is"to restrict and frighten blacks from being involved in Southern governments"
The Black Codes were codes that restricted the rights of African Americans to work - so it's false that it allowed black people the right to vote without paying a poll tax. (this was the 24th Amendment)
#1 would be either d or b I narrowed it down.
#2 would be c or the other answer it might be b from there chose and use notes !!