<span>Karl Marx believed the study of history was: of Class conflict also known as class warfare or class struggle. Class conflict is the difference between classes in a community. It is the tension or antagonism which exists within the community due to (social/economic) positions and their reflected opposed/ different interests. It comes down to different opinions and thoughts from different groups of people based on their race, gender, age and financial differences. Marx thought if he could figure this out he would better understand history!</span>
Answer:
D, C, and A.
Explanation:
During the late 1800s new ways of American farming improved thanks to the development in farm technology and machinery. The railroad system made possible the transportation and commercialization of goods from the country to the cities. There was a replacement of the horse power, which was used to plough the land by the steam tractor, in which it allowed farmers to introduce a great variety of crops and wheats.
The purpose of the League of Nations was to prevent through collective security and disarmament and settling international disputes through negotiation and arbitration. The League of Nations also wanted to take care of labor conditions, just treatment of native inhabitants, human and drug trafficking, arms trade, global health, prisoners of war and protection of minorities in Europe.
