On January 1, 2020, National Retail purchased $100,000 of GEH Company bonds at a discount of $10,000. The GEH bonds pay 6% interest but were purchased when the market interest rate was 8% for bonds of similar risk and maturity. The bonds pay interest semiannually on June 30 and December 31 of each year. National Retail accounts for the bonds as a held-to-maturity investment and uses the effective interest method. In National Retail's December 31, 2020, journal entry to record the second period of interest would include a credit to interest revenue of: $3,000 a. Ob. $3,600 $3,336 d. $7,336 e. $3,624