Ontario Appliances has the following data: Sales Less: Cost of Goods Sold Gross Profit Less: Operating Expenses Operating Income Less: Other Expense: Interest Expense Income before Tax Less: Income Tax Expense Net Income 2X13 $ 930 410 520 260 260 (30) 230 92 $138 2X12 $700 235 465 231 234 (30) 204 82 $122 What is the interest coverage for Ontario Appliances in 2X13? Has the interest coverage improved or not improved since 2X12? O a. 12.7, unknown O b.7.7, not improved O c. 7.7, improved O d. 8.7, improved O e. 8.7, not improved