Starr Builders sponsors an unfunded postretirement plan providing health care benefits. The following information relates to the current year's activity of Starr's postretirement benefit plan: Service cost $240 million Amortization of net gain-AOCI 20 million Prior service cost-AOCI none Retiree benefits paid (end of year) 60 million Postretirement benefit expense $300 million What is Starr's interest cost for the year? Multiple Choice $80 million 540 million 0 0 oC $100 million can millinn