Economists believe that the government's regulation of energy use is redundant, and the market can completely adjust the contradiction between energy supply and demand. If energy is really tight, then reflected in the market, energy prices will naturally rise, and energy prices will rise. On the one hand, people use less energy because of increased use costs, and on the other hand, energy suppliers increase their supply because of increased profits. Which of the following is true to forcefully challenge the above statement? ['When energy prices rise, people will use more energy-efficient products.', "Because of the unbearable increase in the cost of living caused by rising energy prices, people will protest the government's inaction in energy management.", 'Lower energy prices will stimulate people to use more energy.', 'Inelastic demand for energy.']