What agreement established a free-trade area among the United States, Canada, and Mexico?

The North American Free Trade Agreement (NAFTA) is the correct answer as it was specifically designed to create a free-trade area among the United States, Canada, and Mexico. Officially implemented in 1994, NAFTA aimed to eliminate trade barriers, increase investments, and foster economic collaboration across these three nations. The agreement led to the reduction or elimination of tariffs on many goods and services, promoting smoother trade and economic integration.

In contrast, the World Trade Organization deals with global trade rules and does not pertain to a specific free-trade agreement between just the U.S., Canada, and Mexico. The Civil Rights Act of 1964 and the Americans with Disabilities Act of 1990 are landmark legislation focused on civil rights and disability rights, respectively, rather than trade agreements. Thus, NAFTA is distinctly the agreement that established a trilateral free-trade relationship among these three countries.