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NMF Corporation offered an incentive stock option plan to its employees. On January 1, 2018, options granted for sixty thousand $1 par common shares. The exercise price equals the $5 market price of the common stock on the grant date. The options cannot be exercised before January 1, 2021, and expire December 31, 2022. Each option has a fair value of $1 based on an option pricing model.

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Which is the correct entry to record the exercise of 90% the options on April 15,2021 , when the What is the entry to record the expiration of 10% of the options on December 31,2022