Which of the following should be added to net income in calculating net cash flow from operating activities using the indirect method? Oa. a decrease in accounts receivable Ob. an increase in inventory Oc. a decrease in accounts payable Od. preferred dividends declared and paid Free cash flow is cash from operations less cash used for Oa. fixed assets needed to maintain current operations and cash to redeem bonds payable Ob. investments in PP&E needed to achieve desired future operations Oc. dividends and cash to redeem bonds payable Od investments in PP&E needed to maintain current operations