Question

nafta can be defined as
a means to acquire convenient resources.
a unification treaty that limits trade barriers.
an agreement between bordering nations.
a way for corporations to more easily outsource labor.

Explanation:

NAFTA (North American Free Trade Agreement) is an intergovernmental treaty between the U.S., Canada, and Mexico. Its core purpose is to eliminate and limit trade barriers like tariffs and quotas to facilitate free trade between the three nations. While it has secondary effects like easier resource access or labor outsourcing, its formal definition centers on being a unification-focused trade barrier-limiting treaty.

Answer:

a unification treaty that limits trade barriers.