A 12-year semi-annual coupon bond with a face value of $1,000 was issued at par four years ago. The yield to maturity (YTM) when this bond was issued was 8%. What is the yield to maturity (YTM) if the current price of the bond is $1,321.48? Note: Please retain at least 4 decimal places in your calculations and choose the closest option. a. 1.69% O b. 3.38% O c. 3.33% O d. 2.25% O e. 4.50%