Smith & Sons Balance Sheet Bonds payable Common stock As of December 31 Cash $ 80,000 Current liabilities Accounts receivable 160,000 Inventory 260,000 Plant assets (net) 500,000 Total liabilities and Total assets $1,000,000 Retained earnings stockholders' equity $ 160,000 240,000 400,000 200,000 $1,000,000 Sales revenue for the year was $1,600,000, gross profit was $640,000, and net income was $72,000. One year ago, accounts receivable were $152,000, inventory was $220,000, total assets were $920,000, and stockholders' equity was $520,000. What was the company's return on common stockholders' equity? Select one: 6.0 percent 0 12.9 percent 8.9 percent 11.2 percent