The 1994 north american free trade agreement was established between the u.s., canada, and mexico which helped lower the amount of illegal trading. reduce trade barriers. all of the answers are correct. allow trade to happen between these countries.
I would say the NAFTA would do all of the indicated answers but it should be kept in mind that this trade is only 'free' if the US wants it that way. As in the case of Canadian softwood exports to the US, the US pushes very hard to impose duties on our softwood and to me that violates a 'free' trade agreement by coming from a sore loser.
