Kaiser's Kraft Inc. (KKI) produces a single product. Last year, the selling price was $40 per unit. KKI's financial results for last year were as follows: Sales $80,000 Variable costs $28,000 Fixed costs $60,000 Which one of the following represents the increase in operating income for KKI if sales increase by $45,000? Spreadsheet Xlsx Available answer options Select only one option A $15,750 B $17,000 C $29,250 D $45,000