The correct answer is option 1: United States. The United States is the largest producer of timber in the world. Timber refers to wood that is harvested and used for various purposes such as construction, furniture, and paper production. The United States has a vast forested area, particularly in states like Oregon, Washington, and California, which contribute significantly to timber production. The country has a well-developed forestry industry and a long history of sustainable forest management practices. Brazil, option 2, is known for its rainforests, but its timber production does not surpass that of the United States. Nigeria, option 3, is not a major player in the global timber market. Similarly, Sweden, option 4, though known for its forestry industry, does not produce as much timber as the United States.