A bond has a $1,000 par value, nine years to maturity, and pays a coupon of 6.75% per year, semiannually. The bond is callable in four years at 110% of its par value. If the bond's price is $1,137.17, what is its yield to call? O 1) 5.06% 2) 5.65% 3) 5.26% 4) 5.43% 5) 5.20%