! Required information [The following information applies to the questions displayed below.] The stockholders' equity section of Velcro World is presented here. VELCRO WORLD Balance Sheet (partial) ($ and shares in thousands) Stockholders' equity: Preferred stock, $1 par value Common stock, $i par value Additional paid-in capital Total paid-in capital Retained earnings Treasury stock, 10,000 common shares Total stockholders' equity $ 5,000 20,000 575,000 600,000 278,000 (220,000) $ 658,000 Based on the stockholders' equity section of Velcro World, answer the following questions. Remember that all amounts are presented in thousands. Required: 1. How many shares of preferred stock have been issued? (Enter you answer in total number of shares, not in thousands.) Number of shares