Final answer:
The European Union, NAFTA, and APEC are examples of regional trading agreements that promote free trade and economic cooperation.
Step-by-step explanation:
The European Union (EU), NAFTA, and APEC are all examples of regional trading agreements. These agreements aim to promote free trade and economic cooperation among member countries. The EU, for example, started as a free trade association and eventually became a full economic union. Similarly, NAFTA facilitated trade between the United States, Canada, and Mexico. APEC promotes free trade and economic cooperation among countries in the Asia-Pacific region.