Stark Inc. follows IFRS for financial reporting and has established a defined benefit pension plan for employees. Pertinent details for the year ended December 31, 20X5, are as follows: Stark Inc. follows IFRS for financial reporting and has established a defined benefit pension plan for employees. Pertinent details for the year ended December 31, 2005, are as follows: Stark Inc. follows IFRS for financial reporting and has established a defined benefit pension plan for employees. Pertinent details for the year ended December 31, 20x5, are as follows: Current service cost Past service cost Benefits paid evenly throughout the year Discount rate used by actuary Actuarial losses in the year Pension obligation as at January 1, 20X5 Plan assets as at January 1, 20X5 $52,000 $10,000 $85,000 6% $10,000 $650,000 $625,000 What is the balance of the pension obligation as at December 31, 20X5? a. $673,450 Ob. $674,050 O $671,500 O d. $654,050