The statement given by the Author helps to show why the world need storage methods to get efficient and undisputed renewable energy.
A renewable energy is also called clean energy because they are generated from an infinite natural source such as water, sun, wind etc
Hence, the statement given by the Author helps to show why the world need storage methods to get efficient and undisputed renewable energy.
Therefore, the Option C is correct.
Read more about renewable energy
brainly.com/question/545618