Melissa read the following opinion about electric cars:
Electric cars are hailed as the answer to our planet’s environmental crisis. Without question, the survival of our planet depends on finding an alternative to fossil fuels, but electric cars aren’t the solution. We already struggle to provide enough electricity to meet demand. Our power grids are aging and inadequate. They cannot support the power needs of a fleet of electric cars.
Which information could the author add to support her point of view