A bond has a $1,000 par value, seven years to maturity, and pays a coupon of 5.75% per year, annually. The bond is callable in two years at 115% of its par value. If the bond's price is $967.82, what is its annual yield to maturity? 1) 6.78% 2) 6.33% 3) 6.46% 4) 6.54% 5) 6.61%