Apple Inc., has the following abridged financial statement information for fiscal year 2019 and 2020 ($ in billions): Income Statement 2019 2020 Balance Sheet 2019 2020 Sales 259.97 274.15 Cash 28.12 19.98 Cost of Goods Sold 162.26 170.14 Marketable Securities 72.46 71 Gross Profit 97.71 104.01 Accounts Receivable 45.8 37.45 SG&A Exp. 34.46 38.67 Inventory 4.11 4.06 Interest Expense 3.58 2.87 Total Current Assets 162.82 143.71 Income Before Tax 65.74 67.09 Fixed Assets 37.38 45.34 Income Tax Expense 10.48 9.68 Total Assets 338.52 323.89 Net Income 55.26 57.41 Accounts Payable 46.24 42.3 Notes Payable 16.24 15.23 Total Current Liabilities 105.72 105.39 Long-Term Debt 91.81 107.05 Cash Flow Statement 2019 2020 Total Liabilities 248.03 258.55 Cash Flows from Operations 69.39 80.67 Retained Earnings 45.9 14.97 Cash Flows from Investing 45.9 -4.29 Common Equity 90.49 65.34 Cash Flows from Financing -90.98 -86.82 Total Equity 90.49 65.34 On 12/31/2020. Apple had 16,790,000,000 shares outstanding and stock price of $132.69. Apple issued dividends $0.84 por share. Apple's effective tax rate in 2020 is a. 17.72% b. 11.83% c. 14.43% d. 20.65% Apple's price-to-book ratio on 12/31/2020 is O a. 16.43 O b. 43.26 c. 22.39 d. 34.10 Apple's sustainable equity growth rate in 2020 is O a. 0.56 b. 0.74 c. 0.47 d. 0.69 Apple's dividend payout ratio in 2020 is O a. 19.33% O b. 37.18% c. 24.57% O d. 43.26% Apple's return on common equity ratio for 2020 is a. 0.67 b. 0.89 O c.0.56 O d. 0.74