The "World System" (and World System Theory) improves on older ways of organizing and explaining the relationship between nations and cultures by...

A. Organizing nations into Developed and Developing.
B. Relying on Gross Domestic Product (GDP) as a way of ranking nations on a global scale.
C. Organizing nations into First, Second, and Third World.
D. Ignoring differences in wealth between different nations.
E. Relying on the role that cultures and nations play in global industrial production as a means of explaining differences in wealth and standard of living.