A. The part of the budget deficit that is a result of a downtum in economic activity. B. An income tax system in which a person's tax rate is the same regardless of taxable income. C. The total amount that the federal government owes its creditors. D. An income tax system in which one's tax rate rises as taxable income rises (up to some point). E. An income tax system in which a person's tax rate declines as his or her taxable income rises. F. Government expenditures greater than tax revenues. G. Tax revenues greater than government expenditures H. Changes in government expenditures and/or taxes to achieve economic goals, such as low unemployment, stable prices, and economic growth. I. Government expenditures equal to tax revenues. J. The part of the budget deficit that would exist even if the economy were operating at full employment