The investment opportunity schedule (IOS) shows the O a. firm's average cost of capital Ob net present values of different projects the firm is evaluating Octotal funds required to invest in capital budgeting projects the firm is evaluating for possible purchase d. marginal increase in the weighted average cost of capital that results from changes in the capital components that the firm uses to finance new capital budgeting projects Oe.costs of the capital components included in a firm's financing arrangements