Exhibit 4.1 The balance sheet and income statement shown below are for Koski Ine. Note that the firm has no amortization charges, it does not lease any assets, none of its debt must be retired during the next 5 years, and the notes payable will be rolled over. Balance Sheet (Millions of s) s Assets 2018 $5,000 12,500 Cash and securities Accounts receivable Inventories Total current assets Net plant and equipment 12,500 $30,000 $20,000 S50,000 Total assets Liabilities and Equity Accounts payable $11.040 Accruals 4,960 7,000 Notes payable Total current liabilities $23,000 $12,000 Long-term bonds Total liabilities Common stock S35.000 S4,200 Retained earnings 10,800 Total common equity SI5.000 Total liabilities and equity S50,000 Income Statement (Millions of 5) 2018 $70,000 Net sales 65,100 1,400 Operating costs except depreciation Depreciation Earnings before interest and taxes (EBIT) Less interest Earnings before taxes (EBT) Taxes $3.500 1.140 $2.360 944 Net income $1.416 500.00 $495.60 Other data: Shares outstanding (millions) Common dividends (millions of S) 8 Int rate on notes payable & L-T bonds Federal plus state income tax rate Year-end stock price 6% 40% S33.98 Refer to Exhibit 4.1. What is the firm's return on invested capital? O a. 6.92% O b. 6.61% O c. 5.81% O d. 5.13% O e. 6.18%