What is Total stockholders' equity? $78,100$22,500$77,500$76,900

Entity I had the following accounts: Common stock, $5 par, 2,000 shares authorized, 900 shares $ 4,500 issued, 800 shares outstanding Paid-in-capital in excess of par 18,000 Treasury stock (100 shares common at cost) 600 Retained earnings 55,000 What is Total stockholders' equity? O O O O $78,100 $22,500 $77,500 $76,900