Which of the following statements provides the best explanation for why the environmental movement started growing in the US in 1970? A. The media brought an increasing number of incidents of pollution to the public's attention. B. The Republican administration needed a cause to divert the public's attention from the Vietnam War. C. The prosperity that resulted from the growing economy provided the funds to begin cleaning up toxic waste sites. D. The nation was stirred into action by The Greening of America, a book written by Charles Reich.