13. Discount-Mart issued ten thousand $1,000 bonds on January 1, 2018. The bonds have a 10 -year term and pay interest semiannually. This is the partial bond amortization schedule for the bonds. What is the interest expense on the bonds for the year ended December 31, 2019? A) $700,700 B) $696,827 C) $693,103 D) $699,427