Answer:
The correct answer is "58,044".
Step-by-step explanation:
The given values are:
Service cost,
= $43,200
Accumulated postretirement benefit obligation,
= 321,800
Actual and expected return,
= 10,900 
Discount rate,
= 8%
The interest cost will be:
= 

= 

The Postretirement benefit expense will be:
= 

= 

= 
