The united states tax court was set up to a. settle disputes about the tax rates set by the internal revenue service b. settle disputes between states about the taxes they owe to the federal government c. hear appeals regarding payment of federal taxes d. try criminal cases regarding payment of federal taxes you!

c. hear appeals regarding payment of federal taxes

Explanation:

The tax court has the function of judging disputes over federal income tax, usually before the time when the formal contributions are made by the Internal Revenue Service. This is the only government body that can make this judgment without the taxpayer having previously paid the tax.