Consider the following statements about Immanuel Wallerstein’s World-Systems Theory:

 

Statement I: Wallerstein divides the world into core, semi-periphery, and periphery nations based on their economic roles.

Statement II: World-Systems Theory suggests that global capitalism benefits all countries equally.

Statement III: According to Wallerstein, underdevelopment in periphery nations is a result of exploitation by core nations.

Which of the above statements is/are correct?