What's wrong with the following practices in foggy weather?

Answer D Answer Analysis Test Analysis: A. Burning straw in the open air in the suburbs will produce a lot of smoke, leading to haze weather. Mistakes; B. Promoting the use of coal-fired power generation will produce a lot of smoke and dust, leading to haze weather. Mistakes; C. A large number of motor vehicles are used, and a large amount of smoke will be generated when fuel is burned, which will lead to haze weather. Mistakes; D more use of solar energy to generate electricity will reduce the generation of smog, so it can reduce the formation of smog, correct. Test center: investigate the knowledge of measures that can reduce the formation of smog.