Read the passage. Solar energy is formed when energy is obtained from the sun's rays. This energy has been used for cooking, heating, drying clothes and more. It can also be used to power things similar to electricity, batteries, and gas. With improved technology, solar energy can now be used to generate electricity to power homes and to power cars as well. Solar energy is so important as it provides energy without polluting the Earth as some forms of energy does. Since it is not harmful for the environment and is abundant because of the sun, solar energy has become a vital resource that is used more than ever before. What does the author imply in the passage? A. Technology has changed use of solar energy over time. B. Most homes and businesses only use solar energy. C. Most uses for solar energy have already been adopted. D. It is difficult to capture the sun's energy for electricity.