please help! the answer has to be one of the options

Exhibit 4.1 The balance sheet and income statement shown below are for Koski Inc. Note that the firm has no amortization Long-temm bonds Total liabilities $42,000 Common stock $5,040 Retained earnings Total common equity Total liabilities and equity Income Statement (Millions of S) Net sales 12,960$18,000560,000 Operating costs except depreciation 78,120 Depreciation Earnings before interest and taxes (EBIT) $4,200 Less interest Eamings before taxes (EBT) 53.300 Taxes Net income 1.32051.980 Refer to Exhibit 4.1. What is the firm's total debt to total capital ratio? Do not round your intermediate calculations. 44.09% 39.09% 39.55% 38.18% 45.45%