Answer:
Southerners otherwise known as the Northern Song Dynasty.
Explanation:
They committed late to the Mongolian empire so they are lowest in class.
One example is that on the cartridges in the gun that had to be pulled out with their teeth, were greased with pork or beef fat, which was against their religion.
a second is that they didn't respect many of the traditions.
Yeah pick A ithink A to myself