Short answer please

Data: The below data shows federal government receipts and expenditures of the United State of America. FRED~ - Federal Government Current Receipts - Federal Government: Current Expenditures 5,200 4.800 4 400 4.000 3.600 Billions of Dollars 200 2.800 2,40 2000 1.600 2002 2004 2006 2008 2010 2012 2014 2016 2018 Source: U.S. Bureau of Economic Analysis Figure 1: Federal Fiscal Policy in the United States, 2001-2017 https://fred.stlouisfed.org/graph/?g=BJUe Discuss: a. Recall that the shaded areas in the FRED graph indicate recessions. How did current receipts (from taxation) change during the 2008-2009 recession? How did current expenditures change during the 2008-2009 recession? b. What is the purpose of decreasing government receipts (from taxation) during a recession? c. What is the purpose of increasing government expenditures during a recession