U. s. national debt when the federal government's

a. decreases; tax revenue rises faster than outlays

b. increases; tax revenue rises faster than outlays

c. decreases; outlays exceed tax revenue

d. increases; outlays exceed tax revenue

d. Increases when outlays (payments) exceed revenue.

Outlays (or payments) are the expenses, and tax revenue is the income. So whenever the expenses outweigh the income you will add to the debt. If you earn $500 a month but spend $700  you will be adding that extra $200 to your debt each month.

answer; i believe the correct answer is (75 years);

you get a crown by getting lots of points and you get points by answering other peoples questions