On january 1 2021, a company grants 1504 stock options to employees to acquire common stock ($1 par value) for an exercise price of $12. The options become exercisable on Jan 1, 2024 and expire 3 years after that. Fair value per option was $4 on grant date. The stock price remains below strike price during the entire exercise window and no options are exercised. The journal entry for expiration will include a debit to paid in capital stock option for?