The Lo Sun Corporation offers a 5.7 percent bond with a current market price of $830.50. The yield to maturity is 8.15 percent. The face value is $1,000. Interest is paid semiannually. How many years is it until this bond matures?

A) 20.77 years

B)10.39 years

C) 29.14 years

D) 5.19 years

E) 19.96 years