The correct answer is option 4, Australia. Bauxite is a mineral used to produce aluminum. Australia is known to have the largest bauxite reserves in the world, making it the largest producer of bauxite globally. Australia`s bauxite production accounts for a significant portion of global bauxite supply.

Option 1, the U.S.A., is not the largest producer of bauxite. While the United States does have bauxite reserves, the production of bauxite in the U.S. is not as substantial as in other countries.

Option 2, Jamaica, is known for its bauxite production and has significant reserves. However, it is not the largest producer globally.

Option 3, Chile, is not a major producer of bauxite. Chile is known for its copper production but not for bauxite.

Therefore, the correct answer is option 4, Australia.