In January 2, 2021, Benny Inc. issued $10,000 of 5% bonds; the bonds are convertible into 1,000 shares of Benny stock. Throughout 2021, Benny Inc. had 3,000 shares of common stock outstanding. Benny's net income for 2021 was $6,000, and Benny's tax rate is 30%. No other potential shares exist. What is Benny's diluted earnings per share for 2021, rounded?

Group of answer choices

a. $1.63

b. $2.17

c. $1.14

d. $1.59