Southerners were critical of the North and believed that the North's wage labor system was a bad system that they had no interest in putting into place in the south. The southern economy was based on slave labor and southerners wanted to continue the practice of slavery and prevent any transition away from this.
C. Viking raiders and armed bands threatened everyone, but kings had lost power and could not protect everyone. Under the feudal system, nobles could protect their property and local people by offering land in exchange for loyalty and military service.
The correct answer is daimyo, samurai, and shoguns.