Bonds issued by XYZ have a coupon rate of 11.40 percent and a face value of $1,000, pay semi-annual coupons with one just paid and the next coupon due in 6 months, and mature in 7 years from today. Six months ago, the bonds were priced at $1,155. Today, the bond's yield-to- maturity (YTM) is 9.00 percent. What was the rate of return for the bonds over the past 6 months (from 6 months ago until today)? a. 2.14% (plus or minus 0.02 percentage points) b.2.20% (plus or minus 0.02 percentage points) c. 7.73% (plus or minus 0.02 percentage points) d. 1.58% (plus or minus 0.02 percentage points) e. None of the above is within 0.02 percentage points of the correct