Seether Co. wants to issue new 13-year bonds for some much-needed expansion projects. The company currently has 7.0 percent coupon bonds on the market that sell for $983.30, make semiannual payments, and mature in 13 years. What coupon rate should the company set on its new bonds if it wants them to sell at par?

7.50%

3.60%

6.90%

7.10%

7.20%