Corporations face the following tax schedule: Taxable income Tax on Base of Bracket Percentage on Excess above Base Up to $50, 000 $0 15% $50, 000-$75,000 7,500 25 $75,000-$100, 000 13,750 34 $100, 000-$335,000 22,250 39 $335,000-$10, 000, 000 113,900 34 $10, 000, 000-15,000, 000 3,400, 000 35 $15,000, 000-18,333,333 5,150, 000 38 Over $18,333,333 6,416,667 35 Company Z has $90, 000 of taxable income from its operations, $5,000 of interest income, and $30, 000 of dividend income from preferred stock it holds in other corporations. What is company Z's tax liability? Assume a 70% dividend exclusion for tax on dividends. $21,429 $22,620 $19,762 $18,096 $23,810