Triangle Tower Corp., a company reporting under IFRS, has a defined benefit pension plan. Pension information concerning the 2019 and 2020 fiscal years is presented below (in millions):+ Information provided by the pension plan actuary + Defined benefit obligation (DBO), December 31, 2019- $1, 8004 Past service cost (PSC) from a plan amendment made January 2, 20204 4004+ Current service costs (CSC) for 20204 5204+ 2020 interest cost on DBO, based on 10% discount rate 18064 2020 actuarial gain on DBO arising from a change in estimated 250443 Benefits paide Funding for the year Information provided by the pension plan trustee Pair value of plan assets, January 1, 2020- $1, 60040 Actual return on plan assets 2244+ What is the pension expense for the year ended December 31, 202074 A 500 B 540 C 920 D 940