The following Information pertains to Havana Corporation's defined benefit pension plan: $ in thousands) Projected benefit obligation Plan assets Prior service cost-AOCI Net loss-AOCI 2021 Beginning balances $(8,000) 7,700 800 2022 Beginning balances $(8,504) 8,336 720 $ 990 $ 920 At the end of 2021, Havana contributed $740 thousand to the pension fund and benefit payments of $794 thousand were made to retirees. The expected rate of return on plan assets was 10%, and the actuary's discount rate is 7%. There were no changes in actuarial estimates and assumptions regarding the PBO. What is the 2021 service cost for Havana's plan? Multiple Choice $440 thousand $618 thousand $738 thousand O Cannot be determined from the glven information