FMC Inc. provides its employees with a defined benefit pension plan, details of which follow:
Pension obligation 12/31/20X5	$7,000,000
Plan assets 12/31/20X5	$5,900,000
Discount rate used in actuarial assumptions	4%
Current service cost for the year	$590,000
Past service cost (improvement in benefits) 01/01/20X6	$60,000
Actuarial gain due to a change in assumption	$0
Actual return on plan assets	$275,000
Remitted to pension trustee evenly throughout year	$670,000
Payments to retirees evenly throughout year	$640,000
What is the net amount that will be charged to pension expense for FMC Inc.s December 31, 20X6 year end?

a.

$694,000

b.

$644,600

c.

$683,000

d.

$623,000