The following data has been collected about Keller Company's stockholders' equity accounts: Common stock $10 par value 20,000 shares authorized, 10,000 shares issued, and 9,000 shares outstanding Paid-in capital in excess of par value, common stock Retained earnings Treasury stock $100,000 50,000 25,000 11,500 Assuming the treasury shares were all purchased at the same price, the cost per share of the treasury stock is: Select one: O a $1.15. Ob. $1.28. c. $11.50. Od. $10.50. e. $10.00.