Zelienople Co. reported the following information at December 31, 2017: Preferred stock, $10 par, 5,000 shares authorized, cumulative $ 50,000 Common stock, $1 par, 500,000 shares authorized 200,000 Additional paid-in capitalcommon 25,000 Retained earnings 75,000 Total contributed capital and retained earnings $350,000 Less: Treasury stock (400 shares at cost) (5,000) Total stockholders' equity $345,000 The number of shares of common stock issued is a. 5,000. b. 550,000. c. 200,000. d. 500,000.