A: Ivan III stopped sending tributes to the Tatar court.
C: Russians were encouraged to believe that Moscow had become the new center of Christianity.
D: Ivan III deported boyars he considered troublemakers.
Booker Washington thought of imperialism as a way of taking the people's sovereign rights in an American colony.
hope this helps you(:
It should be A. Each worker can focus on 1 thing that they are specialized in. Hope this helps