Answer:
a. globalization.
Step-by-step explanation:
Global economy refers to the viewing economies of all countries as a single economy. In recent years, economies of multiple countries are increasingly becoming interconnected and dependent on each other. Globalization describes the increased interactions and interdependence between multiple countries.
Advancement in technology and infrastructure development has facilitated the easy and faster movement of people, technology, ideas, goods, and services across borders. Consequently, international trade and social interactions have increased, making the world appear as one big economy. This connection between countries' economies is globalization.