The correct answer is c) China.
NAFTA, or the North American Free Trade Agreement, was a trade deal between the United States, Canada, and Mexico that aimed to eliminate trade barriers and promote economic cooperation among these three countries. It came into effect on January 1, 1994.
China, while a significant global economy and trading partner, was not included in NAFTA. Instead, the agreement focused solely on the three North American countries. In 2018, NAFTA was replaced by the United States-Mexico-Canada Agreement (USMCA), but China has remained outside of these negotiations and agreements.