Please help!! I’ll mark Brainlyist <33

These headlines BEST reflect the idea of?

News paper headlines -

“Maine and Missouri enter Union due to Compromise”
“California admitted as a Free state to the Union”
“Kansas - Nebraska act establishes popular sovereignty”


A ) Enactment of protective tariffs.

B ) Extension of slavery.

C ) Voting rights for minorities.

D ) Widespread public
education.