Bartling Energy Systems recently reported $9,250 of sales, $5,750 of operating costs other than depreciation, and $700 of depreciation. The company had no amortization charges, it had $3,200 of outstanding bonds that carry a 5% interest rate, and its federal-plus-state income tax rate was 25%. In order to sustain its operations and thus generate sales and cash flows in the future, the firm was required to make $1,250 of capital expenditures on new fixed assets and to invest $300 in net operating working capital. By how much did the firm's net income exceed its free cash flow? Select the correct answer. a. $739 b. $721 c. $726 d. $730 e. $735