On January 1, 2007, a company sold 12% bonds with a face value of $600,000. The bonds mature in five years, and interest is paid semiannually on June 30 and December 31. The bonds yield 10%. Using the effective-interest method of amortization, interest expense for 2007 is approximately

$60,000.

$64,436.

$64,633.

$72,000.