Pleas double check my work on the above problem. Thank you.

On October 15, 2015, the board of directors of Ensor Materials Corporation approved a stock option plan for key executives. 1 On January 1, 2016, 20 million stock options were granted, exercisable for 20 million shares of Ensor's $1 par common stock. The options are exercisable between January 1, 2019 and December 31, 2021, estimated by an appropriate option pricing model, is $6 per option. Two million options were forfeited when an executive resigned in 2017. All other options were exercised on July 12, 2020, when the stock's price jumped unexpectedly to $19 per share. 5 1) When is Ensor's stock option measurement date? The measurement date is the sane as the grant date, January 1, 2016. 2) Determine the compensation expense for the stock option plan in 2016 (ignore taxes) $6 x 20,000,000 shares-$12 0,000,000/3 years $40,000,000 per year, thus $40,000,000 compensation expense for 2016