Op January 1, 2021, Ultra Corporation issues $600,000, 5-year, 4% bonds at 105. Interest is paid semiannually on January 1 and July 1. Ultra Corporation uses the straight-line method of amortization. The company's fiscal year ends on December 31. The necessary journal entry on December 31, 2021 includes: a debit to Interest Expense of $15,000 a credit to Premium on Bonds Payable of $3,000 a debit to Interest Expense of $9,000 a credit to Cash of $12,000