On January 1, 2020, Sandhill Company purchased 12% bonds, having a maturity value of $ 287,000 for $ 308,758.85. The bonds provide the bondholders with a 10% yield. They are dated January 1, 2020, and mature January 1, 2025, with interest received on January 1 of each year. Sandhill Company uses the effective-interest method to allocate unamortized discount or premium. The bonds are classified as available-for-sale category. The fair value of the bonds at December 31 of each year-end is as follows.

2020 $ 306,500

2021 $ 296,800

2022 $ 295,800

2023 $ 297,700

2024 $ 287,000

(a) Prepare the journal entry at the date of the bond purchase.

(b) Prepare the journal entries to record the interest revenue and recognition of fair value for 2020.

(c) Prepare the journal entry to record the recognition of fair value for 2021