Can someone explain how to do #8?

8. On July 1, 2019 a company retired one-half of its $900,000,6% bonds by purchasing the bonds on the bond market at 98. The bonds pay semi-annual interest and have an unamortized discount on the date of retirement of $38,426. The entry to record the retirement of this debt would include: A. B. C. D. E. A debit to loss of $10,213 A debit to bond payable for $430,787 A debit to gain of $9,000 A credit to cash of $422,171 A credit to gain of $10.213