The following partial stockholders' equity information was found on the balance sheet of the Dallas Company as of December 31, 2020. Preferred stock; cumulative; 10%, $50 par value; 20,000 shares authorized: 8,000 shares issued and outstanding Common stock; $__? par value; 200,000 shares authorized: 20,000 shares issued: 15,000 shares outstanding $100,000 Additional paid in capital On preferred stock 250,000 On common stock 480.000 120,000 Total paid in capital Retained earnings Treasury stock. ??common shares at cost $10 per share Total stockholders' equity What is the average per share price of the preferred stock? Select one: a. 50.00 b. 75.00 C 62.50 d. 81.25 Adve