Which of the Following Are Counterarguments to the Viewpoint That

Which of the following are counterarguments to the viewpoint that taxes are social tools by which we can achieve a more equal society?

A) Redistribution of income through government is unfair coercion of those with higher incomes.
B) Inequality is frequently the result of higher productivity and thus is just.
C) Equality of income occurs naturally over the life cycle so redistribution at one point in time disrupts this natural process.
D) a and b
E) a and c