Final answer:
NAFTA is a trade agreement that aims to remove tariffs between the USA, Canada, and Mexico, creating a large trading bloc and affecting job patterns due to offshoring and outsourcing.
Step-by-step explanation:
The North American Free Trade Agreement (NAFTA) is a trade agreement between Canada, the United States, and Mexico that was signed in 1992 and went into effect in 1994. The primary goal of NAFTA was to eliminate trade barriers, such as tariffs, between the three countries, allowing goods to move more freely across borders, and thereby facilitating increased trade and investment among them. This not only impacted the economies of the participating countries by creating the world's largest trading bloc but also affected job patterns, like offshoring and outsourcing, as companies sought to maximize efficiencies and reduce costs. Therefore, the correct description of NAFTA is b. an agreement to remove tariffs between the United States, Canada, and Mexico.