Last year, Edna purchased a $1,000 face value corporate bond with an 11.1 percent annual coupon rate and a 12-year maturity. At the time of the purchase, it had an expected yield to maturity of 12.6 percent. If Edna sold the bond today for $956.19, what rate of return would she have earned for the past year?

a. 17.32%

b. 16.22%

c. 11.10%

d. 5.12%

e. 16.48%