Not understanding this problem at all.

The accountant for Marlin Corporation has developed the following information for the company's defined-benefit pension plan for 2021: Service cost Actual and expected return on plan assets Annual contribution to the plan Amortization of prior service cost Benefits paid to retirees Settlement rate $1,000,000 500,000 1,840,000 250,000 120,000 10% The accumulated benefit obligation at December 31, 2021, amounted to $6,500,000 Required: (a) Using the above information for Marlin Corporation, complete the pension work sheet for 2021. Indicate (credit) entries by parentheses. Calculated amounts should be supported (b) Prepare the journal entry to reflect the accounting for the company's pension plan for the year ending December 31, 2021