For Manuel Castells, Globalization Has Involved the Transition from a "World-Economy

For Manuel Castells, globalization has involved the transition from a "world-economy" to a "global economy." By this he means that:

A) there has emerged a worldwide economy with the capacity to work as a single unit
B) capital accumulation now occurs all over the world
C) the gap between the core and the periphery is continuing to widen
D) previously marginized economic regions are now being included in the new economy