In the 1970s, the United States was the largest producer of steel in the world. Today, China has surpassed the United States to become the world's largest producer. In the process, China has seen a rise in air pollution in regions where steel is manufactured. This is an example of: Question 26 options: The (almost complete) relocation of a dirty industry An International Monetary Fund structural adjustment loan An export processing zone The tragedy of the commons None of the above