The U.S. monetary policy implemented in 2008 was an attempt to A. give billions of dollars to businesses and low- and middle-income Americans in order stimulate business investment and consumption expenditure, thereby increasing AD. B. decrease interest rates in order to stimulate business investment and consumption expenditure, thereby increasing SAS. C. decrease interest rates in order to stimulate business investment and consumption expenditure, thereby increasing AD. D. decrease the exchange rate in order to boost net exports, thereby increasing AD.