Computing Pension Expense, Gain/Loss Amortization, PBO, and Plan Asset Balances The following data relate to a defined benefit pension plan for Hollistir Co. Fair value of plan assets, Jan. 1, 2020 $16,000 PBO Jan 1, 2020, not including any items below 20,000 PSC from amendment dated Jan. 1, 2020. (10 years is the amortization period) 10,000 Gain from change in actuarial assumptions, computed as of Jan. 1, 2020 3,000 Actual return on plan assets, 2020 2,000 Contributions to plan assets in 2020 4,000 Benefits paid to retirees in 2020 5,000 Service cost for 2020 9,000 Discount rate 896 Expected rate of return on plan assets 1096 Required a. Compute pension expense for 2020. Hollistir amortizes the full pension gain/loss over average service life of 15 years, using the straight-line method. Pension expense, 2020 $ b. Compute PBO at December 31, 2020. PBO, Dec. 31, 2020 $ c. Compute fair value of plan assets at December 31, 2020. Fair value of plan assets, Dec 31, 2020 $