A Progressive Tax System Is Designed So That

A progressive tax system is designed so that:

A) a person pays the same tax rate, regardless of income.
B) as a person progresses from one tax rate to another, the after-tax income falls.
C) as a person's income rises, a lower tax rate is paid on the extra dollars that are earned.
D) as a person's income rises, a higher tax rate is paid on the extra dollars that are earned.