Which of the following is not associated with NAFTA?

The correct answer is A. UK.

NAFTA is the North American Free Trade Agreement, a trade agreement between the United States, Canada, and Mexico. It was signed in 1992 and went into effect in 1994. The agreement eliminates tariffs and other trade barriers between the three countries, and promotes trade and investment.

The UK is not a member of NAFTA. It is a member of the European Union, which has its own trade agreements with the United States and Canada.

The other options, Canada and Mexico, are members of NAFTA.