O'Brien Ltd.'s outstanding bonds have a $1,000 par value, and they mature in 25 years. Their nominal annual, not semiannual yield to maturity is 9.25%, they pay interest semiannually, and they sell at a price of $1,175. What is the bond's nominal coupon interest rate?

a. 11.06%

b. 11.50%

c. 13.82%

d. 13.60%

e. 9.40%