B.The Oregon Border, because the US claimed all of it from Britain.
Hope this helps :)
It prevented slaves from learning how to read and write. It also made it scary for them to escape because they allowed slave owners to whip them or hang them for trying to escape or committing small or big crimes.
10 bracelets, because 1 feet equal 12 inches and there are 5 feet so you need to do 5 x 12 =60. And Sal use 6 inches per bracelet so it 60 divide by 6 equal 10．
Since then the Great Wall was built, rebuilt to protect the northern borders of the Chinese Empire from the Hun's and Mongolian attacks during the rule of successive dynasties.
