What is the passage mainly about？
A. Ray Mathers and Eve Winick hold different opinions on tax.
B. People have different views and reasons about how taxes should be paid.
C. The progressive tax covers a percentage of people"s wages.
D. The flat rate taxes require everyone to pay the same percentage of their income.
Mathers prefers the flat rate tax probably because______.
A. it is fair and easy to figure out
B. he pays heavy taxes
C. it is more applicable than the progressive rate for him
D. all of the above
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