As global energy, environment, and climate change issues become increasingly prominent, space solar has attracted interest from countries such as the United States. In the long run, space solar will not only reduce human dependence on limited fossil energy, but also replace large-scale proliferation of nuclear energy. It is a way, and space solar energy will also bring a new era of space utilization and exploration. Which item best reflects the purpose of the above paragraph? ['Space solar has attracted interest from countries such as the United States.', 'The development and utilization of space solar energy is of great significance.', 'Space solar can solve current global energy problems.', 'Space solar will revolutionize the aerospace industry.']