18. The following Information pertains to Jet Corp's outstanding stock for 2016: Common stock, $5 par value Shares outstanding, V/2016 2-for-1 stock split, 4/12016 Shares Issued, 7/N/2016 Preferred stock?$10 par value, 5% cumulative Shares outstanding, V/2016 20,000 20,000 10,000 4,000 What is the number of shares Jet should use to calculate 2016 basic earnings per share? 45.000 O 54,000 - ) 50,000 40,000 esc F2