Nafta
a. an agreement between the united states, haiti, and mexico to establish free trade
it took effect in 1994 and is designed to eliminate trade barriers between the three nations by 2009.

b. an agreement between the united states, canada, and mexico to establish free trade
it took effect in 1994 and is designed to eliminate trade barriers between the three nations by 2009.
c. an agreement between the united states, puerto rico, and mexico to establish free trade
it took effect in 1994 and is designed to eliminate trade barriers between the three nations by 2009.
d. an agreement between the united states, canada, and the caribbean to establish free trade
it took effect in 1994 and is designed to eliminate trade barriers between the three nations by 2009.