Perez Company began operations in 2017. Since then, it has reported the following gains and losses for its investments in trading securities on the income statement: Profits (losses) from the sale of equity-traded investments Unrealized holding losses for equity investments 2017 15000 2018 2019 (20000) 14000 (25000) (30000) 10000 Unrealized holding gains for equity investment At January 1, 2020. Perez owned the following trading securities: DRK shares (15,000 shares) LRF shares (2000 shares) Cost 450000 210000 115000 DaRK shares (1000 shares) During 2020, the following events occurred: 1- Sold 5,000 shares of BKD for $17,000. 2- Acquired 1,000 shares of Horton Common for $40 per share. Brokerage commissions totaled $1,000. (the company intend to keep it for a long term) At 12/31/2020, the fair values for Perez's trading securities were: BKD Common, $28 per share LRF Preferred, $110 per share Drake Bonds, $28 per bond Horton Common, $42 per share instructions (a) Prepare a table showing the balance in the fair value adjustment (trading) account on December 31, 2019 (after making the adjustment entry for 2019). (B) Prepare a table showing the total cost and fair values of the portfolio of securities traded in Perez and determine the balance of unrealized holding gains (losses) on 31/12/2020. (c) write the necessary adjustment entry based on your analysis in (b) above. (change in fair value)