Sectionalism became very tensed in the late 1940s because of the separation of the North and the South because of the slavery. People in the North were focusing on industrializing, urbanizing, and building factories while the people from the South concentrated in agriculture. The Southerners was claiming that the North's factories weren't treating everyone fairly and lead into a war.
"<span>It led to a large number of causalities on both sides" would be the best option from the list, since the war still dragged on although now with far more men involved, meaning more deaths.</span>
The correct answer is D. It has protected civil rights using the Fourteenth Amendment and other laws.
Explanation
In the events presented in the questions, situations of discrimination against different minority communities such as ethnic groups, racial groups, and homosexual groups are exposed. This discriminatory conduct is classified as illegal because the Fourteenth Amendment of the United States established a clause that deals with equal treatment of all people in all states of the country, so treating them in a differential or discriminatory manner is considered illegal. Additionally, in the second case (the case of racial discrimination on the bus), reference is made to the Interstate Commerce Law, which prohibits discrimination in interstate transportation. Therefore, the correct answer is D. It has protected civil rights using the Fourteenth Amendment and other laws.