China's available geothermal energy reserves exceed the total energy reserves of all domestic fossil fuels. In some areas, the technology for converting geothermal energy into electricity has become a reality. The possible energy shortage problem in China in the next century will be completely solved by this. Which of the following, if true, would most weaken the author's view? ['At some point in the next century, the depletion of geothermal heat will force China to rely more on imported energy.', 'Any method of producing electricity consumes some energy in the process of producing electricity.', 'Long-distance transportation of electricity from geothermal transformation to densely populated and economically developed areas is impractical.', 'Some scientists firmly believe that energy shortages can be addressed by improving energy efficiency and encouraging energy conservation.']