
Answer:
Interest expense and a gain.
Explanation:
US GAAP allows companies to report their financial assets or financial liabilities at their fair market value, this is called the fair value option.
If interest rates increase, and of course the coupon rate is fixed, then they value of bonds will decrease. The same logic applies to bonds sold at a discount.
In this case, the company must report an interest expense in the income statement regardless of what happens to the interest rate, since the company must pay the coupon rate.
Since the price of the bonds decreased, then the company's liabilities (bonds payable) decrease, so the company must report a gain = bond's previous value - bond's current value