Why did so many northerners oppose the dred scott decision? they believed that all african americans should be citizens. they were concerned that laws prohibiting slavery in the north might be overturned. they believed the decision would lead to war.

The answer is B I just took the test.

B) They were concerned that laws prohibiting slavery in the North might be overturned.

i beleive its 1)aids

evaluate the extent to which the seven years' war (french and indian war, 1754–1763) marked a turning point in american relations with great britain, analyzing what changed and what stayed the same from the period before the war to the period after it.