The correct option is C Only 1, 2, 3 and 4
Mercosur is a custom union in South America. Its member countries are Argentina, Brazil, Paraguay, and Uruguay. Its associate countries are Chile, Bolivia, Colombia, Ecuador and Peru. Observer countries are New Zealand and Mexico. Its purpose is to promote free trade and the fluid movement of goods, people, and currency. Venezuela was suspended in 2016 from the Mercosur trade group over its failure to comply with its commitments when it joined the group in 2012.