Which of the following describes some of the claims made by Baker, Schultz, and Halstead about potential US policy efforts to reduce carbon emissions in the reading, "The Strategic Case for U.S. Climate Leadership"? A. The development of cleaner energy sources in the US could enhance national security B. The develop of cleaner energy sources could help to enhance economic growth in the US over the long run C. Stronger environmental regulations throughout the world could enhance the competitiveness of US manufacturing in global markets D. Options A and B are correct E. Options A,B,C are correct