The Internal Rate of Return (IRR) is a crucial metric in capital budgeting, representing the discount rate at which the Net Present Value (NPV) of all cash flows from a project equals zero. The decision rule for IRR is straightforward: a project should be accepted if its IRR is greater than the firm's cost of capital (or required rate of return). The cost of capital represents the minimum return a company must earn on an investment to satisfy its investors.
Therefore, if a project has an IRR higher than the cost of capital, it means the project is expected to generate a return that exceeds the cost of financing it. This indicates that the project will add value to the firm and increase shareholder wealth, making it a financially sound decision to Accept the project. Rejecting the project (A) would be appropriate if the IRR were lower than the cost of capital. Being indifferent (B) would apply if the IRR exactly equaled the cost of capital, assuming no other superior alternatives. Delaying the project (D) is not the standard decision rule based solely on IRR exceeding the cost of capital; a clear 'accept' signal is present.