During 2021, Aloha Inc. had 507,000 shares of common stock and 53,500 shares of 5% cumulative preferred stock outstanding. The preferred stock has a par value of $100 per share. Aloha did not declare or pay any dividends during 2021. Aloha's net income for the year ended December 31, 2021, was $3.2 million. The income tax rate is 20%. Aloha granted 17,000 stock options to its executives on January 1 of this year. Each option gives its holder the right to buy 20 shares of common stock at an exercise price of $36 per share. The options vest after one year. The market price of the common stock averaged $37 per share during 2021. What is Aloha's diluted earnings per share for 2021, rounded to the nearest cent?

A) $5.68.

B) $6.20.

C) $5.78.

D) Cannot determine from the given information.