Wald Inc.'s bonds currently sell for $1,120 and have a par value of $1,000. They pay an $85 annual coupon and have a 20-year maturity, but they can be called in 5 years at $1,050. What return would an investor most likely earn, if interest rates remain at current levels for the foreseeable future? a. 5.95% b. 6.49% c. 6.71% d. 7.08% e. 7.34%