At january 1, year 1, amc company grants 10,000 options that permit key executives to acquire 10,000 of the company’s $1 par common shares within the next five years, but not before december 31, year 3 (the vesting date). the exercise price is the market price of the shares on the date of grant, $20 per share. the fair value of the options is $4 per option. eighty percent of the options (or 8,000) are exercised on january 5, year 4 when the market price is $30 per share. the remaining 20% of the options expire as unexercised when the market price is $18 per share. prepare the appropriate journal entry for the expiration of the unexercised options.