<span>Sandford, legal case in which the U.S. Supreme Court on March 6, 1857, ruled that a slave
who had resided in a free state and territory was not thereby entitled to his freedom; that African
Americans were not and could never be citizens of the United State. Hope this helps!!</span>
Answer:so I dont really know so dont relay on me but I think A and E
Explanation:
Answer:
the answer i think is im assuming D
They made it easier to move goods more cheaply and quality