Which is the main goal of mercosur A to create a political alliance among South American countries B to allow free trade among South American countries C to address environmental challenges in South America D to raise literacy race in South America

The main goal of Mercosur (Southern Common Market) is **B: to allow free trade among South American countries**. Mercosur was established to promote economic integration and cooperation among its member countries, facilitating trade by reducing tariffs and barriers to commerce.