On January 1, 2021, Perez Co. issued at par $10,000 of 6% bonds convertible in total into 1,000 shares of Perez's common stock. No bonds were converted during 2021. Throughout 2021, Perez had 1,000 shares of common stock outstanding. Perez's 2021 net income was $4,500, and its income tax rate is 30%. No potentially dilutive securities other than the convertible bonds were outstanding during 2021. Perez's diluted earnings per share for 2021 would be:_________.a. $5.00.
b. $4.54.
c. $4.50.
d. $4.72.