I'm pretty sure it would be B, because the tensions between most groups are mainly to do with religious differences, especially relating to the belief of how many gods exist.
Answer:
The answer is, It lowered as many Black Americans were sold into slavery
Serfs, likewise might be farmers but might also be craftsmen. The difference between the two was that the peasant owned his own land, while the serf did not. The serf owed labor duties to his lord, whereas a peasant owed nothing or, more usually, owed some sort of rent.
Since it was the easiest part of India to reach by sea, harbors were developed where traders gathered and sold goods from all over Asia, the Middle East, and India, meaning lots of great goods for people to take back to Europe.
It proclaimed the freedom of slaves in the ten Confederate states still in rebellion. It also decreed that freed slaves could be enlisted in the Union Army, thereby increasing the Union's available manpower. The Proclamation also prevented European forces from intervening in the war on behalf of the Confederacy.
