On November 1,2019,Davis Company Issued $30,000,ten-Year,7% Bonds for $29,100

On November 1,2019,Davis Company issued $30,000,ten-year,7% bonds for $29,100.The bonds were dated November 1,2019,and interest is payable each November 1 and May 1.Davis uses the straight-line method of amortization.
- How much is the amount of discount amortization on each semiannual interest date?

A) $90.
B) $45.
C) $900.
D) $450.