The Article states: Africa does have easy access to a potential gamechanger, though: the sun. For years, solar panels were prohibitive, but costs have plummeted in the past decade, making them a viable option. Why did the author include this passage? A.To show how the cost of solar panels has continued to make electricity inaccessible B.To explain why there is renewed interest in finding ways to use solar power for electricity C.To convince the reader that solar power is not efficient enough to be a reliable energy source D.To provide the reader with a reason for the plummeting cost of solar panels over the past decade
