Use the following to answer Questions 13-15. Global Data Service ("GDS") has several defined benefit pension plans (the "Plans") covering substantially all its employees. In general, employees become fully vested upon

attaining 5 years of service, and benefits are based on years of service and carings. GDS's funding policy is to contribute amounts that fall within the range of deductible contributions for income tax purposes. The following tables provide a reconciliation of the changes in the Plans' benefit obligations and fair value of plan assets for the years ended December 31, 2021, 2020 and 2019 (in millions): 2021 2020 Reconciliation of Benefit Obligations Obligation at January 1 Service cost Interest cost Plan amendments Actuarial loss Employee contributions Benefits paid Foreign currency changes Other Obligation at December 31 Reconciliation of Fair Value of Plan Assets Fair value of plan assets at January 1 Actual retum on plan assets Company contributions Employee contributions Benefits paid Foreign currency changes Fair value of plan assets at December 31 Unamortized net actuarial loss Unamortized past service cost Net amount reported in accumulated other comprehensive income $3,144 84 199 7 Service cost Interest cost Expected retum on plan assets Amortization of net actuarial loss Amortization of past service cost Other Net periodic pension cost in P&L. 476 6 (181) (293) Discount rate Compensation growth rate Long-term rate of return on assets $3,442 $2,634 441 228 6 (181) (303) $2,825 2021 $1,108 94 2021 $84 199 $2,708 70 180 (208) 51 18 26 165 $144 6 (213) 207 (5) $3,144 The following table includes the amounts reported in "accumulated other comprehensive income" for the years ended December 31, 2021, 2020 and 2019 (in millions): 2021 6.4% 4.9% 7.9% $2,129 229 311 6 (213) 172 2020 2019 $939 $918 111 100 $1,202 $1,050 $1,018 The following table provides the components of periodic pension cost recognized in the profit and loss statement (P&L) for the years ended December 31, 2021, 2020 and 2019 (in millions) 2019 $2,163 54 151 25 223 2020 $70 180 (169) 69 1 (162) 257 17 $2,708 7 $174 $1,645 2013 214 1 (162) 228 $2,129 2019 $54 151 (132) The weighted average assumptions used in the measurement of GDS's periodic pension cost are shown in the following table for the years ended December 31, 2021, 2020 and 2019: 42 7 $133 11 GDS prepares its financial statements in accordance with U.S. Generally Accepted Accounting Principles 2020 2019 6.8% 7.1% 4.9% 4.9% 8.3% 8.3%/n15. GDS's total periodic pension cost for the year ended 2021 is closest to: $144 million. million. a. b. C. $242 $335 million.