AB Builders has 15-year bonds outstanding with a face value of $1,000 and a market price of $974. The bonds pay interest annually and have a yield to maturity of 3.04 percent. What is the coupon rate? Select one: O a. 2.74 percent O b. 2.82 percent O O c. 2.73 percent d. 2.91 percent o e. 2.51 percent