Shown below is information relating to the stockholders' equity of Mighty Corporation as of December 31, 2020. 8% cumulative preferred stock, $100 par, 75,000 shares authorized $600,000 Common stock, $10 par, 500,000 shares authorized: 120,000 shares issued and $1,200,000 outstanding Additional paid-in capital: preferred stock $200,000 Additional paid-in capital: common stock $600,000 Retained earnings $50,000 How many shares of preferred stock are issued and outstanding? Select one: a. 120,000 shares O b. 60,000 shares O c. 6,000 shares d. 120,000 shares