13 On January 1,2013 Doro Corp. granted an employee an option to purchase 3,000 shares of Doro's $5 par value common stock at $20 per share. The options became exercisable on December 31, 2014, after the employee completed two years of service. The exercised on January 10, 2015. The market prices of the company's stock were as follows: January 1, 2013, $30; December 31, 2014, $50; and January 10, 2015, $45. The pricing model estimated the value of the option at $8 each on the grant date. How much is compensation expense for 2013? (Show computation) were a) $15,000 b) $45,000 c) $12,000 d) 24, oco 5