Wu Systems has the following balance sheet. Assume that all current assets are used in operations. How much net operating working capital does the firm have? Cash Accounts receivable $100 Accounts payable $ 200 650 Accruals 290 Inventory Current assets 550 Notes payable 410 $ 1,300 Total current liabilities $ 900 Net fixed assets $ 1,000 Long-term bonds 600 Total liabilities $ 1,500 Common stock 300 Retained earnings 500 Total assets $ 2,300 Total liab. & equity Common equity $ 2,300 $ 800 O a. $761 O b. $988 . $713 O d. $810 e. $915