Bibby Company retired a $400,000,7% bond issue at 99 . If the unamortized discount is $20,000, the entry will include a: Select one: a. Credit to gain on bond retirement for $16,000 b. Debit to loss on bond retirement for $16,000 c. Credit to gain on bond retirement for $10,800 d. Debit to loss on bond retirement for $10,800