Presented below is pension information related to Wildhorse, Inc. for the year 2021: Service cost $380000 Interest on projected benefit obligation 255000 Interest on vested benefits 117000 Amortization of prior service cost due to increase in benefits 57000 Expected return on plan assets 87000 The amount of pension expense to be reported for 2021 is O $548000. O $722000. O $809000. O $605000.