Um elemento central da globalização é o livre comércio.

Regarding the concept of globalization and international division of labor, it is essential to understand that free trade is a central element in this process.

The correct answer is option C) It is the creation of a system in which goods and services are commercialized without tariff restrictions.

This option is correct because free trade refers to the exchange of goods and services between countries without any restrictions or tariffs. This allows for the free flow of goods and services across national borders, promoting economic integration and cooperation among nations. In a free trade system, countries specialize in producing goods and services in which they have a comparative advantage, leading to increased efficiency and productivity.

In contrast, option A) is incorrect because it describes a protectionist policy, where a country imposes taxes to restrict imports and protect its internal production. Option B) is also incorrect, as it describes the Internet of Things (IoT), which is a network of physical devices, vehicles, and other items embedded with sensors, software, and connectivity, allowing them to interact with the physical world and with each other. Option D) is incorrect because it describes the increase in inequality between rich and poor countries, which is a consequence of globalization, not a definition of free trade. Option E) is also incorrect, as it describes the impact of Industry 4.0 on job creation, which is a separate concept from free trade.

In conclusion, free trade is a fundamental aspect of globalization, allowing countries to specialize and exchange goods and services efficiently. This leads to increased economic growth, productivity, and cooperation among nations.