B is false because neither the North or South forged any alliances. C is wrong as well because slaves feared rising against their masters and D is wrong as well because Virginia did secede from the Union. So A is the only correct choice
There are many geographic effects that can be seen from the colonization of Africa, but the most important one is that the colonizers drew random lines on a map to separate the tribes.
The goal was to stop the spread of Communism.
(Look into Domino Theory.)
