Under a proportional income tax,the average tax rate

A) decreases as income increases.
B) increases as income increases.
C) remains constant at all levels of income.
D) initially decreases,then increases,as income increases.

Proportional Income Tax

A taxation system where the tax rate remains constant regardless of the amount of income.

Average Tax Rate

The percentage representation of total taxes paid in relation to the overall taxable income or expenditure.