In the period from 1900 CE to the present, the world faced multiple global conflicts that had a profound influence on world politics. Develop an argument that evaluates the extent to which the end of World War II in 1945 brought major changes to world politics.

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.