31. Katarina, a single taxpayer, has total income from all sources of $100,000 for 2013. Her taxable income after taking into consideration $25,000 in deductions and $10,000 in exclusions is $65,000. Katarina's tax liability is $12,179. What are Katarina's marginal, average, and effective tax rates? $990.7!\" 28% marginal; 18.7% average; 18.7% effective. 25% marginal; 16.2% average; 16.2% effective. 25% marginal; 16.2% average; 18.7% effective. 25% marginal; 18.7% average; 16.2% effective. 28% marginal; 16.2% average; 18.7% effective