15090 Real and Potential GDP, USA 14000 Potential 13000 Actual D Billions of 2005 $ 12000 11000 10000 9000 1996 1998 2000 2002 2004 2006 2008 2010 The movement from point C to D could have been caused by O a decline in consumer and business confidence. O a decrease in energy prices. O a decrease in the interest rate. O a rise in productivity