To me this seems like a bit of an unclear question. I mean sure, we need to be comparing bonds with similar credit ratings and characteristics, but one of these characteristics is the term to maturity
@kevinpb639‌ Yeah OK so the answer is correct. The definition you have noted down is known as the debt rating approach where you value bonds using similar bonds. You know what I mean. The yield to maturity approach means calculating the yield to maturity on company’s current debt. These are the two approaches used to calculate Kd for WACC. Hope this helps.