When using the weighted average cost of capital (WACC) to discount cash flows from a project, we assume the following: 1) The project's risks are the same as those of the firm's other assets and remain so for the life of the project. II) The project supports the same fraction of debt to value as the firm's overall capital structure, and that fraction remains constant for the life of the project. III) The cash flows from the project occur in perpetuity. I only Il only I and II only I, II, and