Table 12-21 the Dollar Amounts in the Last Three Columns Are the Are

Multiple Choice

Table 12-21
The dollar amounts in the last three columns are the taxes owed under the three different tax systems.
-Refer to Table 12-21. Which of the three tax systems is proportional?

A) Tax System A
B) Tax System B
C) Tax System C
D) None of the systems are proportional.