Tire Inc.'s bonds currently sell for $1,150 and have a par value of $1,000. They pay a $100 annual coupon and have a 15-year maturity, but they can be called in 5 years at $1,090. What is their yield to call (YTC)?
a. 8.25%
b. 7.80%
c. 7.35%
d. 6.47%
e. 6.12%