What benefits did American society gain from the marketing techniques used by Hearst and Pulitzer?

from the conditions of the working class in england by friedrich engels,the main idea is :

abraham lincoln, according to anyone who was connected with agriculture, represented the worst of northern politicians. shortly after lincoln was elected, south carolina seceded from the union. they along with other southern states, retained their anger. in a way, it was their own fault: the democrats were split in the south. some wanted slavery to be extended in other states that were about to join the union and some didn't want it badly enough. lincoln had a solid backing from his party: the republicans were united in not wanting slavery to be expanded.

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.

hello,

your answer whould be d