Watson Oil recently reported (in millions) $8,250 of sales, $5,750 of operating costs other than depreciation, and $650 of depreciation. The company had $3,200 of outstanding bonds that carry a 5% interest rate, and its federal-plus-state income tax rate was 35%. In order to sustain its operations and thus generate future sales and cash flows, 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?

a. $836

b. $878

c. $718

d. $796

e. $756