Financial information for Powell Panther Corporation is shown below: Powell Panther Corporation: Income Statements for Year Ending December 31 (Millions of Dollars) Sales Operating costs excluding depreciation and amortization EBITDA Depreciation and amortization Earnings before interest and taxes (EBIT) Interest Earnings before taxes (EBT) Taxes (25%) Net income Common dividends 2019 $1,680.0 1,260.0 $ 420.0 45.0 $ 375.0 37.0 $ 338.0 135.2 $ 202.8 $ 182.5 2018 $1,400.0 1,190.0 $ 210.0 39.0 $ 171.0 30.8 $ 140.2 56.1 $ 84.1 $ 67.3 Powell Panther Corporation: Balance Sheets as of December 31 (Millions of Dollars) 2019 2018 Assets Cash and equivalents $ 17.0 $ 15.0 Accounts receivable 235.0 196.0 Inventories 403.0 336.0 Total current assets $ 655.0 $ 547.0 Net plant and equipment 451.0 392.0 Total assets $ 1,106.0 $ 939.0 Liabilities and Equity Accounts payable $ 145.0 $126.0 Accruals 53.0 42.0 Notes payable 33.6 28.0 Total current liabilities $ 231.6 $ 196.0 Long-term bonds 336.0 280.0 Total liabilities $ 567.6 $ 476.0 Common stock 492.9 437.8 Retained earnings 45.5 25.2 Common equity $ 538.4 $463.0 Total liabilities and equity $ 1,106.0 $ 939.0 Write out your answers completely. For example, 25 million should be entered as 25,000,000. Round your answers to the nearest dollar, if necessary. Negative values, if any, should be indicated by a minus sign. a. What was net operating working capital for 2018 and 2019? Assume the firm has no excess cash. 2018: $ 2019: $ b. What was the 2019 free cash flow? c. How would you explain the large increase in 2019 dividends? I. The large increase in free cash flow from 2018 to 2019 explains the large increase in 2019 dividends. II. The large increase in net income from 2018 to 2019 explains the large increase in 2019 dividends. III. The large increase in EBIT from 2018 to 2019 explains the large increase in 2019 dividends. IV. The large increase in sales from 2018 to 2019 explains the large increase in 2019 dividends. V. The large increase in retained earnings from 2018 to 2019 explains the large increase in 2019 dividends. -Select