Excerpts from Stealth Company's December 31, 2013 and 2012, financial statements are presented below: 2013 2012 Accounts receivable $46,000 $42,000 Inventory 29,000 40,000 Net sales 192,000 198,000 Cost of goods sold 120,000 119,000 Total assets 432,000 412,000 Total stockholders' equity 247,000 228,000 Net income 33,500 37,000 Stealth Company's 2013 profit margin is: (Round your answer to 1 decimal place):

13.6%.

17.4%.

7.8%.

20.1%.