On January 1, 2017, Tango Corp. granted an employee options to purchase 20,000 shares of Tango's $0.10 par value common stock at $12 per share. The Black-Scholes option pricing model determines the fair value of the options to be $160,000. The options became exercisable on December 31, 2018, after the employee completed two years of service. The market prices of Tango's stock were as follows: January 1, 2017 December 31, 2018 $9 $14 How much compensation expense should Tango recognize in 2018