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The correct answer is option 4: Mexico and Central America. Slash and burn agriculture is a traditional agricultural technique that involves cutting down and burning vegetation to clear land for cultivation. This method is used in various parts of the world, but it is specifically known as "Milpa" in Mexico and Central America. Milpa is a traditional and sustainable form of agriculture that has been practiced by indigenous communities for centuries. It involves a combination of planting corn, beans, squash, and other crops together in the same field. This method maximizes the use of nutrients and reduces the risk of pests and diseases. It also promotes biodiversity and soil fertility. So, the correct answer is option 4, Mexico and Central America.