In paragraph 3, why does the author mention that in the 1990s The Geysers was in its third decade of production? A. To provide the historical context of the geothermal production of electricity in the United States B. To imply that The Geysers was the first geothermal site to be put into production in California C. To help explain the signs of decline shown by The Geysers D. To explain why 70 new geothermal sites were put into electricity production in the late 1990s