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June Inc. issued 9,000 nonqualified stock options valued at $27,000 (in total--$3 each). Each option entitles the holder to purchase one share of stock at $5 per share. The options vest over three years one-third in 2016 (the year of issue), one-third in 2017, and one-third in 2018. Three thousand options are exercised in 2017 at a time when the stock price of the stock is $9. What is the 2017 book-tax difference associated with the stock options (assume ASC 718 applies to the options)? $3,000 favorable $1,500 unfavorable $6,000 favorable $4,500 favorable