The Table Below Shows Taxes Paid for Various Incomes A)progressive Through All Levels of Income

The table below shows taxes paid for various incomes.According to the information in the table below,the tax system is:
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Table3.3
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$$\begin{array} { | l | r | r | r | r | } \hline \text { Taxable income } & \$ 1,000 & \$ 3,000 & \$ 9,000 & \$ 27,000 \\\hline \text { Taxes } & \$ 100 & \$ 200 & \$ 400 & \$ 800 \\\hline\end{array}$$

A) progressive through all levels of income.
B) proportional throughout all levels of income.
C) regressive throughout all levels of income.
D) based on the benefits-received principle.
E) proportional only between income levels $1,000 and $3,000.