In the Following Situation the Tax System Is A)progressive Through All Levels of Income
B)proportional Throughout All Levels

In the following situation the tax system is
$\begin{array} { r r r r } \text { Taxable income}&\$ 1,000 & \$ 2,000 & \$ 4,000 & \$ 8,000 \\ \text { Tax payments}&\$ 10 & \$ 30 & \$ 90 & \$ 270 \end{array}$

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) there is insufficient information to answer the question