On January 1, 2021, Solo Inc. issued 1,800 of its 8%, $1,000 bonds at 98. Interest is payable semiannually on January 1 and July 1. The bonds mature on January 1, 2031. Solo paid $40,000 in bond issue costs. Solo uses straight-line amortization The amount of interest expense for 2021 is: Multiple Choice $144,000 $147,600 $151,600 $155,200