ces BPK Incorporated and OPK Incorporated are owned by the same family. BPK's marginal tax rate is 21 percent, and OPK's marginal tax rate is 32 percent. BPK is about to incur a $72,000 deductible expense that would benefit both corporations. OPK could obtain the same mutual benefit by incurring a $82,500 deductible expense. Required: a. What is the after-tax cost to BPK of incurring the expense? b. What is the after-tax cost to OPK of incurring the expense? c. Which corporation should incur the expense? Complete this question by entering your answers in the tabs below. Required A Required B Required C What is the after-tax cost to BPK of incurring the expense? After-tax cost