Answer:
Option D.
Step-by-step explanation:
Sectionalism , is the correct answer.
The term Sectionalism is used to describe the loyalty or assistance of a special area or division of the country, preferably a nation as a whole. In the sectional issue, slavery can be taken as an example, which divided the United States into two parts known as the North and the South to the degree that it commenced to the Civil War in America, for the reason that while the northerners opposed slavery the southerners supported it.