Hydro Company Balance Sheet December 31, 2020 Cash $ 40,000 Current Liabilities $ 80,000 Accounts Rec. (net) 80,000 10% Bonds payable 120,000 Inventory 130,000 Common Stock 200,000 Plant & Equip. (net) 250,000 Retained earnings 100,000 Total Assets $500,000 Total Liab. and S/H/E $500,000 Sales revenues for 2020 were $800,000, gross profit was $320,000, and net income was $36,000. The income tax rate was 40 percent. One year ago, accounts receivable (net) were $76,000, inventory was $110,000, total assets were $460,000, and stockholders' equity was $260,000. The bonds payable were outstanding all year and the 2020 interest expense was $12,000. What was the firm's average collection period in 2020? Select one: a. 36.5 days b. 37.4 days c. 18.3 days d. 35.6 days