A bond has 9 years to maturity and a current price of $1014. The coupon rate is 2.5% paid semiannually. the face value is $1000. The bond is callable and will pay a call premium of $80. What is the bonds YTM?

a)2.433%

b)1.163%

c)3.983%

d)2.327%

e)1.991%