On January 1 of the current year, the Barton Corporation issued 12% bonds with a face value of $52,000. The bonds are sold for $50,440. The bonds pay interest semiannually on June 30 and December 31 and the maturity date is December 31, five years from now. Barton records straight-line amortization of the bond discount. The bond interest expense for the year ended December 3115 Oa $6552 Ob $1,560 Oc 56.240 Od 5520