Final answer:
Globalization is hard to define because it entails intricate interconnections among societies and economies around the world, goes beyond just American interests or multinational trade, and embodies changes in technology, culture, and global market dynamics.
Step-by-step explanation:
Defining globalization can be challenging because it encompasses a wide array of interconnected phenomena. The difficulty in defining globalization lies not in American dominance (option a) or solely in international trade and multinational corporations (option d), but in complex ways that societies and economies are interconnected (option c) and influenced by one another.
Indeed, globalization is a historic process involving exploration, migration, and trade, creating expansive networks around the globe. It's evident today when companies like Walmart and McDonald's operate across borders, leveraging international trade and using resources from various countries to offer products and services worldwide, not just dominated by American interests.
Moreover, globalization involves changing not just through economic activities, but also through technological advancements that catalyze and facilitate global interconnectedness, affecting not only markets but also governments, cultures, philanthropy, and more. This multifaceted nature of globalization contributes to its definition as a complex and dynamic process.