You are analyzing a project and have developed the following estimates: unit sales =2,150, price per unit =$84, variable cost per unit =$57, fixed costs per year =$13,900. The depreciation is $8,300 a year and the tax rate is 21 percent. What effect would an increase of $1 in the selling price have on the operating cash flow? a. $1,698.50 b. $1,249.65 c. $1,320.65 d. $3,773.25 e. $1,430.35