Exhibit 4.1 The balance sheet and income statement shown below are for Koski Inc. 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) 2018 Assets $3,000 Cash and securities 15,000 Accounts receivable Inventories 18,000 $36,000 Total current assets $24,000 Net plant and equipment $60,000 Total assets Liabilities and Equity Accounts payable $18,630 Accruals 8,370 Notes payable 6,000 $33,000 Total current liabilities $9,000 Long-term bonds Total liabilities $42,000 $5,040 Common stock 12,960 Retained earnings Total common equity $18,000 $60,000 Total liabilities and equity Income Statement (Millions of S) 2018 $84,000 Nt sales 78,120 Operating costs except depreciation 1,680 Depreciation $4,200 Earnings before interest and taxes (EBIT) 900 Less interest $3,300 Earnings before taxes (EBT) Taxes 1,320 $1,980 Net income Other data: 500.00 Shares outstanding (millions) $693.00 Common dividends (millions of $) 6% Int rate on notes payable & L-T bonds 40% Federal plus state income tax rate $47.52 Year-end stock price Refer to Exhibit 4.1. What is the firm's profit margin? Do not round your intermediate calculations. a. 2.48% O b. 1.84% c. 1.82% O d. 2.52% O e. 2.36%