A $5,000 face value municipal bond matures in 10 years and is priced at $4,850. The coupon rate is 4.75 percent with interest paid semiannually. The bond is callable in 5 years at a call price of 102 percent of par. What is the promised yield on the bond?

A. 5.14 percent

B. 5.40 percent

C. 5.85 percent

D. 5.80 percent

E. 4.77 percent