A company's defined benefit pension plan incurs current service cost of $4,000,000. This pension plan's assets generated $2,500,000 of income, which exceeded expectations by $500,000. Pension obligations incurred interest cost of $1,500,000, which were $700,000 below expectations. During the year, the company increased benefits in the pension plan and incurred $800.000 for past service cost. Given this information, the pension expense for the vear was: $5,000.000 $3,800,000 $4.600.000 $4,500.000 $5,600,000