Critical Reasoning (CR) | Re: Businesses are suffering because of a lack of money

what is the problem with option E.AS IT SAYS,THE MODIFIED TAX STRUCTURE WOULD GIVE ALL TAXPAYER,REGARDLESS OF THEIR INCOMES,THE SAME TAX SAVING FOR A GIVEN INCREASE IN THEIR RETIREMENT SAVINGS

DOES HERE "GIVEN INCREASE" MEANS SAME INCREASE IN SAVING?

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