Which of the following is the definition of government expenditures?

a. Money the government spends to buy goods and services

b. An itemized summary of probable government revenue and expenses for a given period

c. Central bank actions using interest rate or money supply tools to achieve goals such as stable prices, maximum employment, and moderate long-term interest rates

d. The total market value, expressed in dollars, of all final goods and services produced in an economy in a given year