The correct answer: "People from the North that moved to the South after the US Civil War".
Carpetbagger was a pejorative denomination used by US citizens from the Southern states, former Confederates, to refer to people from the North who came to live in the South after the US Civil War. These "carpetbaggers" became targets of the white supremacist organization known as Ku Klux Klan because they supported the total integration in the US society of former slaves and they resided in the Southern states where the KKK operated.
"Focus" allows us to be more efficient and to use our resources effectively by focusing our time, talents, and resources on a few tasks, since this saves us from distraction.
The framers of the Constitution believed that concessions on slavery were the price for the support of southern delegates for a strong central government.